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29997552180474 = 2321666530676693
BaseRepresentation
bin1101101001000010110010…
…11100010001110011111010
310221012201220222200122100200
412310201121130101303322
512412434441324233344
6143444404001543030
76214152210306144
oct664413134216372
9127181828618320
1029997552180474
11961598819800a
123445887644a76
1313979ac27c828
14759c6423dc94
15370489e59069
hex1b4859711cfa

29997552180474 has 12 divisors (see below), whose sum is σ = 64994696391066. Its totient is φ = 9999184060152.

The previous prime is 29997552180457. The next prime is 29997552180521. The reversal of 29997552180474 is 47408125579992.

It is a happy number.

29997552180474 is a `hidden beast` number, since 2 + 9 + 9 + 9 + 7 + 55 + 21 + 80 + 474 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16461723863025 + 13535828317449 = 4057305^2 + 3679107^2 .

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 833265338329 + ... + 833265338364.

Almost surely, 229997552180474 is an apocalyptic number.

29997552180474 is an abundant number, since it is smaller than the sum of its proper divisors (34997144210592).

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

29997552180474 is a wasteful number, since it uses less digits than its factorization.

29997552180474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666530676701 (or 1666530676698 counting only the distinct ones).

The product of its (nonzero) digits is 457228800, while the sum is 72.

The spelling of 29997552180474 in words is "twenty-nine trillion, nine hundred ninety-seven billion, five hundred fifty-two million, one hundred eighty thousand, four hundred seventy-four".

Divisors: 1 2 3 6 9 18 1666530676693 3333061353386 4999592030079 9999184060158 14998776090237 29997552180474