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10978129668 = 2231183167649
BaseRepresentation
bin10100011100101100…
…01111011100000100
31001100002021202210010
422032112033130010
5134440400122133
65013203230220
7536022363642
oct121626173404
931302252703
1010978129668
114723960340
122164678370
13105c53ab1c
1476201a192
15443bbe263
hex28e58f704

10978129668 has 24 divisors (see below), whose sum is σ = 27944330400. Its totient is φ = 3326705920.

The previous prime is 10978129667. The next prime is 10978129739. The reversal of 10978129668 is 86692187901.

It is not an unprimeable number, because it can be changed into a prime (10978129667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41583693 + ... + 41583956.

It is an arithmetic number, because the mean of its divisors is an integer number (1164347100).

Almost surely, 210978129668 is an apocalyptic number.

It is an amenable number.

10978129668 is an abundant number, since it is smaller than the sum of its proper divisors (16966200732).

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

10978129668 is a wasteful number, since it uses less digits than its factorization.

10978129668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83167667 (or 83167665 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 57.

The spelling of 10978129668 in words is "ten billion, nine hundred seventy-eight million, one hundred twenty-nine thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 83167649 166335298 249502947 332670596 499005894 914844139 998011788 1829688278 2744532417 3659376556 5489064834 10978129668