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29886602920 = 235747165073
BaseRepresentation
bin11011110101011000…
…010101111010101000
32212010211220201211021
4123311120111322220
5442201432243140
621421341342224
72105421635056
oct336530257250
985124821737
1029886602920
1111747232139
125960b67974
132a83a40735
14163736b1d6
15b9dbc9b4a
hex6f5615ea8

29886602920 has 16 divisors (see below), whose sum is σ = 67244856660. Its totient is φ = 11954641152.

The previous prime is 29886602857. The next prime is 29886602927. The reversal of 29886602920 is 2920668892.

It can be written as a sum of positive squares in 2 ways, for example, as 29750040324 + 136562596 = 172482^2 + 11686^2 .

It is not an unprimeable number, because it can be changed into a prime (29886602927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373582497 + ... + 373582576.

Almost surely, 229886602920 is an apocalyptic number.

29886602920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29886602920 is an abundant number, since it is smaller than the sum of its proper divisors (37358253740).

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

29886602920 is a wasteful number, since it uses less digits than its factorization.

29886602920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747165084 (or 747165080 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 29886602920 in words is "twenty-nine billion, eight hundred eighty-six million, six hundred two thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 747165073 1494330146 2988660292 3735825365 5977320584 7471650730 14943301460 29886602920