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29112886480 = 245363911081
BaseRepresentation
bin11011000111010000…
…110110010011010000
32210010221000212101211
4123013100312103100
5434110344331410
621212502105504
72050305311026
oct330720662320
983127025354
1029112886480
111138a513567
125785a1b294
13298c661062
1415a26c4716
15b55ce568a
hex6c74364d0

29112886480 has 20 divisors (see below), whose sum is σ = 67687461252. Its totient is φ = 11645154560.

The previous prime is 29112886459. The next prime is 29112886483. The reversal of 29112886480 is 8468821192.

It can be written as a sum of positive squares in 2 ways, for example, as 13734902416 + 15377984064 = 117196^2 + 124008^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29112886483) 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, 181955461 + ... + 181955620.

Almost surely, 229112886480 is an apocalyptic number.

29112886480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29112886480 is an abundant number, since it is smaller than the sum of its proper divisors (38574574772).

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

29112886480 is a wasteful number, since it uses less digits than its factorization.

29112886480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363911094 (or 363911088 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 49.

The spelling of 29112886480 in words is "twenty-nine billion, one hundred twelve million, eight hundred eighty-six thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 363911081 727822162 1455644324 1819555405 2911288648 3639110810 5822577296 7278221620 14556443240 29112886480