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9999672 = 2331724509
BaseRepresentation
bin100110001001…
…010100111000
3200211000222020
4212021110320
510024442142
6554154440
7150665364
oct46112470
920730866
109999672
11570a9a1
123422a20
1320c1687
1414842a4
15d27cec
hex989538

9999672 has 32 divisors (see below), whose sum is σ = 26470800. Its totient is φ = 3137024.

The previous prime is 9999667. The next prime is 9999677. The reversal of 9999672 is 2769999.

It is an interprime number because it is at equal distance from previous prime (9999667) and next prime (9999677).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11847 + ... + 12662.

Almost surely, 29999672 is an apocalyptic number.

It is an amenable number.

9999672 is an abundant number, since it is smaller than the sum of its proper divisors (16471128).

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

9999672 is a wasteful number, since it uses less digits than its factorization.

9999672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24535 (or 24531 counting only the distinct ones).

The product of its digits is 551124, while the sum is 51.

The square root of 9999672 is about 3162.2257983895. The cubic root of 9999672 is about 215.4411134622.

The spelling of 9999672 in words is "nine million, nine hundred ninety-nine thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 24509 49018 73527 98036 147054 196072 294108 416653 588216 833306 1249959 1666612 2499918 3333224 4999836 9999672