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10210000000 = 27571021
BaseRepresentation
bin10011000001001000…
…00011110010000000
3222100112220201222011
421200210003302000
5131402230000000
64405043422304
7511004365564
oct114044036200
928315821864
1010210000000
11436a308132
121b8b384994
13c69366325
146cbdc96a4
153eb5402ba
hex260903c80

10210000000 has 128 divisors (see below), whose sum is σ = 25450130160. Its totient is φ = 4080000000.

The previous prime is 10209999991. The next prime is 10210000051. The reversal of 10210000000 is 1201.

It can be written as a sum of positive squares in 8 ways, for example, as 9137830464 + 1072169536 = 95592^2 + 32744^2 .

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (4).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9999490 + ... + 10000510.

Almost surely, 210210000000 is an apocalyptic number.

10210000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10210000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12725065080).

10210000000 is an abundant number, since it is smaller than the sum of its proper divisors (15240130160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10210000000 is an frugal number, since it uses more digits than its factorization.

10210000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 4.

Adding to 10210000000 its reverse (1201), we get a palindrome (10210001201).

The spelling of 10210000000 in words is "ten billion, two hundred ten million", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 320 400 500 625 640 800 1000 1021 1250 1600 2000 2042 2500 3125 3200 4000 4084 5000 5105 6250 8000 8168 10000 10210 12500 15625 16000 16336 20000 20420 25000 25525 31250 32672 40000 40840 50000 51050 62500 65344 78125 80000 81680 100000 102100 125000 127625 130688 156250 163360 200000 204200 250000 255250 312500 326720 400000 408400 500000 510500 625000 638125 653440 816800 1000000 1021000 1250000 1276250 1633600 2000000 2042000 2500000 2552500 3190625 3267200 4084000 5000000 5105000 6381250 8168000 10000000 10210000 12762500 15953125 16336000 20420000 25525000 31906250 40840000 51050000 63812500 79765625 81680000 102100000 127625000 159531250 204200000 255250000 319062500 408400000 510500000 638125000 1021000000 1276250000 2042000000 2552500000 5105000000 10210000000