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29149331 = 31940301
BaseRepresentation
bin110111100110…
…0100010010011
32000211221100212
41233030202103
524430234311
62520434335
7502523321
oct157144223
960757325
1029149331
11154aa362
1299189ab
136067a33
143c2ad11
15285bc8b
hex1bcc893

29149331 has 4 divisors (see below), whose sum is σ = 30089664. Its totient is φ = 28209000.

The previous prime is 29149327. The next prime is 29149333. The reversal of 29149331 is 13394192.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29149331 - 22 = 29149327 is a prime.

It is a super-2 number, since 2×291493312 = 1699366995495122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29149333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470120 + ... + 470181.

It is an arithmetic number, because the mean of its divisors is an integer number (7522416).

Almost surely, 229149331 is an apocalyptic number.

29149331 is a deficient number, since it is larger than the sum of its proper divisors (940333).

29149331 is an equidigital number, since it uses as much as digits as its factorization.

29149331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940332.

The product of its digits is 5832, while the sum is 32.

The square root of 29149331 is about 5399.0120392531. The cubic root of 29149331 is about 307.7581272767.

The spelling of 29149331 in words is "twenty-nine million, one hundred forty-nine thousand, three hundred thirty-one".

Divisors: 1 31 940301 29149331