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28695552 = 21039341
BaseRepresentation
bin110110101110…
…1110000000000
31222222212220020
41231131300000
524321224202
62503013440
7465623334
oct155356000
958885806
1028695552
111521a436
12973a280
135c39322
143b4d7c4
1527bc5bc
hex1b5dc00

28695552 has 44 divisors (see below), whose sum is σ = 76492296. Its totient is φ = 9564160.

The previous prime is 28695551. The next prime is 28695617. The reversal of 28695552 is 25559682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28695551) 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 3 ways as a sum of consecutive naturals, for example, 1599 + ... + 7742.

Almost surely, 228695552 is an apocalyptic number.

It is an amenable number.

28695552 is an abundant number, since it is smaller than the sum of its proper divisors (47796744).

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

28695552 is an equidigital number, since it uses as much as digits as its factorization.

28695552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9364 (or 9346 counting only the distinct ones).

The product of its digits is 216000, while the sum is 42.

The square root of 28695552 is about 5356.8229390190. The cubic root of 28695552 is about 306.1527709117.

The spelling of 28695552 in words is "twenty-eight million, six hundred ninety-five thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 512 768 1024 1536 3072 9341 18682 28023 37364 56046 74728 112092 149456 224184 298912 448368 597824 896736 1195648 1793472 2391296 3586944 4782592 7173888 9565184 14347776 28695552