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78625052 = 22113159977
BaseRepresentation
bin1001010111110…
…11100100011100
312110221120021222
410223323210130
5130112000202
611445112512
71643205362
oct453734434
9173846258
1078625052
1140422190
12223b8738
131339b5cc
14a629632
156d814a2
hex4afb91c

78625052 has 48 divisors (see below), whose sum is σ = 157731840. Its totient is φ = 33964800.

The previous prime is 78625039. The next prime is 78625073. The reversal of 78625052 is 25052687.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79988 + ... + 80964.

It is an arithmetic number, because the mean of its divisors is an integer number (3286080).

Almost surely, 278625052 is an apocalyptic number.

It is an amenable number.

78625052 is an abundant number, since it is smaller than the sum of its proper divisors (79106788).

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

78625052 is a wasteful number, since it uses less digits than its factorization.

78625052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082 (or 1080 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 78625052 is about 8867.0768576798. The cubic root of 78625052 is about 428.4041296004.

The spelling of 78625052 in words is "seventy-eight million, six hundred twenty-five thousand, fifty-two".

Divisors: 1 2 4 11 22 31 44 59 62 118 124 236 341 649 682 977 1298 1364 1829 1954 2596 3658 3908 7316 10747 20119 21494 30287 40238 42988 57643 60574 80476 115286 121148 230572 333157 634073 666314 1268146 1332628 1786933 2536292 3573866 7147732 19656263 39312526 78625052