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10857936644 = 2279137250807
BaseRepresentation
bin10100001110010111…
…01111011100000100
31001000201010022221122
422013023233130010
5134214112433034
64553231133112
7533032636652
oct120713573404
931021108848
1010857936644
114672027565
122130374198
1310406770a9
1475008ddd2
1543837b62e
hex2872ef704

10857936644 has 24 divisors (see below), whose sum is σ = 19382442240. Its totient is φ = 5321100096.

The previous prime is 10857936641. The next prime is 10857936647. The reversal of 10857936644 is 44663975801.

10857936644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10857936641) and next prime (10857936647).

It is a super-3 number, since 3×108579366443 (a number of 31 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (10857936641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82112 + ... + 168695.

It is an arithmetic number, because the mean of its divisors is an integer number (807601760).

Almost surely, 210857936644 is an apocalyptic number.

It is an amenable number.

10857936644 is a deficient number, since it is larger than the sum of its proper divisors (8524505596).

10857936644 is a wasteful number, since it uses less digits than its factorization.

10857936644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251027 (or 251025 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 10857936644 in words is "ten billion, eight hundred fifty-seven million, nine hundred thirty-six thousand, six hundred forty-four".

Divisors: 1 2 4 79 137 158 274 316 548 10823 21646 43292 250807 501614 1003228 19813753 34360559 39627506 68721118 79255012 137442236 2714484161 5428968322 10857936644