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28552968 = 23322271747
BaseRepresentation
bin110110011101…
…0111100001000
31222201122022100
41230322330020
524302143333
62455553400
7464460543
oct154727410
958648270
1028552968
11151322a4
12968b860
135bb9462
143b1385a
152790213
hex1b3af08

28552968 has 48 divisors (see below), whose sum is σ = 77716080. Its totient is φ = 9470304.

The previous prime is 28552949. The next prime is 28552973. The reversal of 28552968 is 86925582.

28552968 is a `hidden beast` number, since 2 + 8 + 552 + 96 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15471 + ... + 17217.

It is an arithmetic number, because the mean of its divisors is an integer number (1619085).

Almost surely, 228552968 is an apocalyptic number.

It is an amenable number.

28552968 is an abundant number, since it is smaller than the sum of its proper divisors (49163112).

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

28552968 is a wasteful number, since it uses less digits than its factorization.

28552968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986 (or 1979 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 28552968 is about 5343.4977308875. The cubic root of 28552968 is about 305.6448526128.

The spelling of 28552968 in words is "twenty-eight million, five hundred fifty-two thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 227 454 681 908 1362 1747 1816 2043 2724 3494 4086 5241 5448 6988 8172 10482 13976 15723 16344 20964 31446 41928 62892 125784 396569 793138 1189707 1586276 2379414 3172552 3569121 4758828 7138242 9517656 14276484 28552968