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29965656992 = 254321777367
BaseRepresentation
bin11011111010000101…
…111010001110100000
32212100100200002121212
4123322011322032200
5442332202010432
621433244005252
72110401611315
oct337205721640
985310602555
1029965656992
1111787917687
125983530828
132a9722c3ab
141643a68d0c
15ba5ae32b2
hex6fa17a3a0

29965656992 has 24 divisors (see below), whose sum is σ = 60366864096. Its totient is φ = 14634389952.

The previous prime is 29965656991. The next prime is 29965657013.

It is a happy number.

29965656992 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (29965656991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10887308 + ... + 10890059.

It is an arithmetic number, because the mean of its divisors is an integer number (2515286004).

Almost surely, 229965656992 is an apocalyptic number.

It is an amenable number.

29965656992 is an abundant number, since it is smaller than the sum of its proper divisors (30401207104).

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

29965656992 is a wasteful number, since it uses less digits than its factorization.

29965656992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21777420 (or 21777412 counting only the distinct ones).

The product of its digits is 141717600, while the sum is 68.

The spelling of 29965656992 in words is "twenty-nine billion, nine hundred sixty-five million, six hundred fifty-six thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 16 32 43 86 172 344 688 1376 21777367 43554734 87109468 174218936 348437872 696875744 936426781 1872853562 3745707124 7491414248 14982828496 29965656992