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29797189448 = 23132312457019
BaseRepresentation
bin11011110000000011…
…010000011101001000
32211220121200001121012
4123300003100131020
5442011040030243
621404425103052
72103254634305
oct336003203510
984817601535
1029797189448
1111700811504
125937027a88
132a6b365760
1416295340ac
15b95e16d18
hex6f00d0748

29797189448 has 32 divisors (see below), whose sum is σ = 62783380800. Its totient is φ = 13154611008.

The previous prime is 29797189447. The next prime is 29797189463. The reversal of 29797189448 is 84498179792.

It is not an unprimeable number, because it can be changed into a prime (29797189441) 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, 6226118 + ... + 6230901.

It is an arithmetic number, because the mean of its divisors is an integer number (1961980650).

Almost surely, 229797189448 is an apocalyptic number.

It is an amenable number.

29797189448 is an abundant number, since it is smaller than the sum of its proper divisors (32986191352).

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

29797189448 is a wasteful number, since it uses less digits than its factorization.

29797189448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12457061 (or 12457057 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 68.

The spelling of 29797189448 in words is "twenty-nine billion, seven hundred ninety-seven million, one hundred eighty-nine thousand, four hundred forty-eight".

Divisors: 1 2 4 8 13 23 26 46 52 92 104 184 299 598 1196 2392 12457019 24914038 49828076 99656152 161941247 286511437 323882494 573022874 647764988 1146045748 1295529976 2292091496 3724648681 7449297362 14898594724 29797189448