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10010100978 = 2324320636269
BaseRepresentation
bin10010101001010011…
…00000010011110010
3221211121202211001200
421110221200103302
5131000041212403
64333143112030
7503026311603
oct112451402362
927747684050
1010010100978
114277494029
121b34442616
13c36b15c97
146ad631daa
153d8c05ca3
hex254a604f2

10010100978 has 48 divisors (see below), whose sum is σ = 22207236480. Its totient is φ = 3257003232.

The previous prime is 10010100977. The next prime is 10010101019. The reversal of 10010100978 is 87900101001.

It is not an unprimeable number, because it can be changed into a prime (10010100977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1593628 + ... + 1599896.

It is an arithmetic number, because the mean of its divisors is an integer number (462650760).

Almost surely, 210010100978 is an apocalyptic number.

10010100978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10010100978 is an abundant number, since it is smaller than the sum of its proper divisors (12197135502).

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

10010100978 is a wasteful number, since it uses less digits than its factorization.

10010100978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8383 (or 8380 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 27.

Adding to 10010100978 its reverse (87900101001), we get a palindrome (97910201979).

The spelling of 10010100978 in words is "ten billion, ten million, one hundred thousand, nine hundred seventy-eight".

Divisors: 1 2 3 6 9 18 43 86 129 258 387 774 2063 4126 6189 6269 12378 12538 18567 18807 37134 37614 56421 88709 112842 177418 266127 269567 532254 539134 798381 808701 1596762 1617402 2426103 4852206 12932947 25865894 38798841 77597682 116396523 232793046 556116721 1112233442 1668350163 3336700326 5005050489 10010100978