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8912972 = 222228243
BaseRepresentation
bin100010000000…
…000001001100
3121202211022002
4202000001030
54240203342
6515011432
7135521225
oct42000114
917684262
108912972
1150384a2
122b99b78
131b00b63
14128024c
15bb0d32
hex88004c

8912972 has 6 divisors (see below), whose sum is σ = 15597708. Its totient is φ = 4456484.

The previous prime is 8912971. The next prime is 8912977. The reversal of 8912972 is 2792198.

It is a d-powerful number, because it can be written as 8 + 9 + 1 + 219 + 9 + 72 + 223 .

It is not an unprimeable number, because it can be changed into a prime (8912971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114118 + ... + 1114125.

It is an arithmetic number, because the mean of its divisors is an integer number (2599618).

Almost surely, 28912972 is an apocalyptic number.

It is an amenable number.

8912972 is a deficient number, since it is larger than the sum of its proper divisors (6684736).

8912972 is a wasteful number, since it uses less digits than its factorization.

8912972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228247 (or 2228245 counting only the distinct ones).

The product of its digits is 18144, while the sum is 38.

The square root of 8912972 is about 2985.4600985443. The cubic root of 8912972 is about 207.3357445937.

The spelling of 8912972 in words is "eight million, nine hundred twelve thousand, nine hundred seventy-two".

Divisors: 1 2 4 2228243 4456486 8912972