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29318508 = 2232814403
BaseRepresentation
bin110111111010…
…1110101101100
32001011112102200
41233311311230
530001143013
62524221500
7504126462
oct157656554
961145380
1029318508
111560547a
12999a890
1360c6a3b
143c72832
152891e73
hex1bf5d6c

29318508 has 18 divisors (see below), whose sum is σ = 74110764. Its totient is φ = 9772824.

The previous prime is 29318477. The next prime is 29318519. The reversal of 29318508 is 80581392.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×293185082 = 1719149822692128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 814403 = 29318508 / (2 + 9 + 3 + 1 + 8 + 5 + 0 + 8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 407166 + ... + 407237.

Almost surely, 229318508 is an apocalyptic number.

It is an amenable number.

29318508 is an abundant number, since it is smaller than the sum of its proper divisors (44792256).

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

29318508 is a wasteful number, since it uses less digits than its factorization.

29318508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814413 (or 814408 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 29318508 is about 5414.6567758261. The cubic root of 29318508 is about 308.3523684052.

The spelling of 29318508 in words is "twenty-nine million, three hundred eighteen thousand, five hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 814403 1628806 2443209 3257612 4886418 7329627 9772836 14659254 29318508