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9012972 = 2234317467
BaseRepresentation
bin100010011000…
…011011101100
3121221220110210
4202120123230
54301403342
6521102420
7136415613
oct42303354
917856423
109012972
1150a6641
123027a10
131b37527
1412a887a
15bd079c
hex8986ec

9012972 has 24 divisors (see below), whose sum is σ = 21520576. Its totient is φ = 2934288.

The previous prime is 9012967. The next prime is 9012977. The reversal of 9012972 is 2792109.

It is an interprime number because it is at equal distance from previous prime (9012967) and next prime (9012977).

It is not an unprimeable number, because it can be changed into a prime (9012977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8218 + ... + 9249.

Almost surely, 29012972 is an apocalyptic number.

It is an amenable number.

9012972 is an abundant number, since it is smaller than the sum of its proper divisors (12507604).

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

9012972 is a wasteful number, since it uses less digits than its factorization.

9012972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17517 (or 17515 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 9012972 is about 3002.1612215203. The cubic root of 9012972 is about 208.1082708014.

The spelling of 9012972 in words is "nine million, twelve thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 17467 34934 52401 69868 104802 209604 751081 1502162 2253243 3004324 4506486 9012972