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52390792 = 236548849
BaseRepresentation
bin1100011111011…
…0101110001000
310122120201122201
43013312232020
5101403001132
65110525544
71204212556
oct307665610
9118521581
1052390792
1127633a83
12156668b4
13ab1468c
146d5abd6
1548ed2e7
hex31f6b88

52390792 has 8 divisors (see below), whose sum is σ = 98232750. Its totient is φ = 26195392.

The previous prime is 52390781. The next prime is 52390799. The reversal of 52390792 is 29709325.

It can be written as a sum of positive squares in only one way, i.e., 31651876 + 20738916 = 5626^2 + 4554^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (52390799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3274417 + ... + 3274432.

Almost surely, 252390792 is an apocalyptic number.

It is an amenable number.

52390792 is a deficient number, since it is larger than the sum of its proper divisors (45841958).

52390792 is a wasteful number, since it uses less digits than its factorization.

52390792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6548855 (or 6548851 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 52390792 is about 7238.1483820104. The cubic root of 52390792 is about 374.1838058649.

The spelling of 52390792 in words is "fifty-two million, three hundred ninety thousand, seven hundred ninety-two".

Divisors: 1 2 4 8 6548849 13097698 26195396 52390792