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1000101001000 = 23533407293543
BaseRepresentation
bin11101000110110101010…
…10100011011100101000
310112121102202110210210211
432203122222203130220
5112341201324013000
62043235015150504
7132153302150413
oct16433252433450
93477382423724
101000101001000
1135615aa404a2
121419ab975434
137340319cb4a
1436595a18b7a
151b0355677ba
hexe8daaa3728

1000101001000 has 64 divisors (see below), whose sum is σ = 2340931207680. Its totient is φ = 399921620800.

The previous prime is 1000101000973. The next prime is 1000101001007. The reversal of 1000101001000 is 1001010001.

1000101001000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (1000101001007) 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, 3260229 + ... + 3553771.

It is an arithmetic number, because the mean of its divisors is an integer number (36577050120).

Almost surely, 21000101001000 is an apocalyptic number.

1000101001000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000101001000 is an abundant number, since it is smaller than the sum of its proper divisors (1340830206680).

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

1000101001000 is a wasteful number, since it uses less digits than its factorization.

1000101001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296971 (or 296957 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 4.

Adding to 1000101001000 its reverse (1001010001), we get a palindrome (1001102011001).

Subtracting from 1000101001000 its reverse (1001010001), we obtain a palindrome (999099990999).

The spelling of 1000101001000 in words is "one trillion, one hundred one million, one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 3407 6814 13628 17035 27256 34070 68140 85175 136280 170350 293543 340700 425875 587086 681400 851750 1174172 1467715 1703500 2348344 2935430 3407000 5870860 7338575 11741720 14677150 29354300 36692875 58708600 73385750 146771500 293543000 1000101001 2000202002 4000404004 5000505005 8000808008 10001010010 20002020020 25002525025 40004040040 50005050050 100010100100 125012625125 200020200200 250025250250 500050500500 1000101001000