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20676168924 = 2231723014077
BaseRepresentation
bin10011010000011001…
…010100110011011100
31222100221212012122020
4103100121110303130
5314321044401144
613255402020140
71331242351605
oct232031246334
958327765566
1020676168924
118850181814
1240104a7650
131c467c1ba8
141002018dac
158102d2419
hex4d0654cdc

20676168924 has 12 divisors (see below), whose sum is σ = 48244394184. Its totient is φ = 6892056304.

The previous prime is 20676168911. The next prime is 20676168967. The reversal of 20676168924 is 42986167602.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×206761689242 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861507027 + ... + 861507050.

It is an arithmetic number, because the mean of its divisors is an integer number (4020366182).

Almost surely, 220676168924 is an apocalyptic number.

It is an amenable number.

20676168924 is an abundant number, since it is smaller than the sum of its proper divisors (27568225260).

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

20676168924 is a wasteful number, since it uses less digits than its factorization.

20676168924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723014084 (or 1723014082 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 20676168924 in words is "twenty billion, six hundred seventy-six million, one hundred sixty-eight thousand, nine hundred twenty-four".

Divisors: 1 2 3 4 6 12 1723014077 3446028154 5169042231 6892056308 10338084462 20676168924