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42552904 = 23171392251
BaseRepresentation
bin1010001001010…
…0111001001000
32222001220121111
42202110321020
541343143104
64120020104
71024456642
oct242247110
988056544
1042552904
1122024699
1212301634
138a7b844
145919892
153b08404
hex2894e48

42552904 has 32 divisors (see below), whose sum is σ = 85125600. Its totient is φ = 19872000.

The previous prime is 42552901. The next prime is 42552971. The reversal of 42552904 is 40925524.

It is not an unprimeable number, because it can be changed into a prime (42552901) 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, 17779 + ... + 20029.

It is an arithmetic number, because the mean of its divisors is an integer number (2660175).

It is a vampire number, since it can be written as 45029452 (with its own digits).

Almost surely, 242552904 is an apocalyptic number.

It is an amenable number.

42552904 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

42552904 is a wasteful number, since it uses less digits than its factorization.

42552904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413 (or 2409 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 42552904 is about 6523.2586948549. The cubic root of 42552904 is about 349.1213443286.

The spelling of 42552904 in words is "forty-two million, five hundred fifty-two thousand, nine hundred four".

Divisors: 1 2 4 8 17 34 68 136 139 278 556 1112 2251 2363 4502 4726 9004 9452 18008 18904 38267 76534 153068 306136 312889 625778 1251556 2503112 5319113 10638226 21276452 42552904