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28596972 = 2232383081
BaseRepresentation
bin110110100010…
…1101011101100
31222210212200010
41231011223230
524310100342
62500533220
7465033045
oct155055354
958725603
1028596972
1115162368
1296b1210
135c034b1
143b258cc
15279d29c
hex1b45aec

28596972 has 12 divisors (see below), whose sum is σ = 66726296. Its totient is φ = 9532320.

The previous prime is 28596961. The next prime is 28596977. The reversal of 28596972 is 27969582.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (28596977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191529 + ... + 1191552.

Almost surely, 228596972 is an apocalyptic number.

It is an amenable number.

28596972 is an abundant number, since it is smaller than the sum of its proper divisors (38129324).

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

28596972 is a wasteful number, since it uses less digits than its factorization.

28596972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383088 (or 2383086 counting only the distinct ones).

The product of its digits is 544320, while the sum is 48.

The square root of 28596972 is about 5347.6136734061. The cubic root of 28596972 is about 305.8017854261.

The spelling of 28596972 in words is "twenty-eight million, five hundred ninety-six thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 2383081 4766162 7149243 9532324 14298486 28596972