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1030200230020 = 2251337107089421
BaseRepresentation
bin11101111110111001011…
…10000000000010000100
310122111010102111001210211
432333130232000002010
5113334322224330040
62105133434125204
7134300215320613
oct16773456000204
93574112431724
101030200230020
113679a6199785
121477abb80804
13761bbc98830
1437c0d2d387a
151bbe7c428ea
hexefdcb80084

1030200230020 has 48 divisors (see below), whose sum is σ = 2392806045168. Its totient is φ = 370101035520.

The previous prime is 1030200230011. The next prime is 1030200230023. The reversal of 1030200230020 is 200320020301.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 84296154244 + 945904075776 = 290338^2 + 972576^2 .

It is a super-2 number, since 2×10302002300202 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (1030200230023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53535091 + ... + 53554330.

It is an arithmetic number, because the mean of its divisors is an integer number (49850125941).

Almost surely, 21030200230020 is an apocalyptic number.

1030200230020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030200230020 is an abundant number, since it is smaller than the sum of its proper divisors (1362605815148).

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

1030200230020 is a wasteful number, since it uses less digits than its factorization.

1030200230020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107089480 (or 107089478 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 1030200230020 its reverse (200320020301), we get a palindrome (1230520250321).

The spelling of 1030200230020 in words is "one trillion, thirty billion, two hundred million, two hundred thirty thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 37 52 65 74 130 148 185 260 370 481 740 962 1924 2405 4810 9620 107089421 214178842 428357684 535447105 1070894210 1392162473 2141788420 2784324946 3962308577 5568649892 6960812365 7924617154 13921624730 15849234308 19811542885 27843249460 39623085770 51510011501 79246171540 103020023002 206040046004 257550057505 515100115010 1030200230020