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29494881 = 3313174943
BaseRepresentation
bin111000010000…
…0111001100001
32001111111101000
41300200321201
530022314011
62532102213
7505462623
oct160407141
961444330
1029494881
1115715a39
129a64969
1361590c0
143cbac13
1528c9356
hex1c20e61

29494881 has 32 divisors (see below), whose sum is σ = 49835520. Its totient is φ = 17079552.

The previous prime is 29494879. The next prime is 29494889. The reversal of 29494881 is 18849492.

It is not a de Polignac number, because 29494881 - 21 = 29494879 is a prime.

It is a super-2 number, since 2×294948812 = 1739896010408322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29494889) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3496 + ... + 8438.

It is an arithmetic number, because the mean of its divisors is an integer number (1557360).

Almost surely, 229494881 is an apocalyptic number.

It is an amenable number.

29494881 is a deficient number, since it is larger than the sum of its proper divisors (20340639).

29494881 is a wasteful number, since it uses less digits than its factorization.

29494881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4982 (or 4976 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 29494881 is about 5430.9189830083. The cubic root of 29494881 is about 308.9694568736.

The spelling of 29494881 in words is "twenty-nine million, four hundred ninety-four thousand, eight hundred eighty-one".

Divisors: 1 3 9 13 17 27 39 51 117 153 221 351 459 663 1989 4943 5967 14829 44487 64259 84031 133461 192777 252093 578331 756279 1092403 1734993 2268837 3277209 9831627 29494881