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52408656 = 2432363949
BaseRepresentation
bin1100011111101…
…1000101010000
310122121122011100
43013323011100
5101404034111
65111144400
71204315626
oct307730520
9118548140
1052408656
1127646443
1215675100
13ab1c851
146d63516
154903756
hex31fb150

52408656 has 30 divisors (see below), whose sum is σ = 146671850. Its totient is φ = 17469504.

The previous prime is 52408633. The next prime is 52408661. The reversal of 52408656 is 65680425.

52408656 is a `hidden beast` number, since 524 + 0 + 86 + 56 = 666.

52408656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 27248400 + 25160256 = 5220^2 + 5016^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 52408656.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 181831 + ... + 182118.

Almost surely, 252408656 is an apocalyptic number.

It is an amenable number.

52408656 is an abundant number, since it is smaller than the sum of its proper divisors (94263194).

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

52408656 is a wasteful number, since it uses less digits than its factorization.

52408656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363963 (or 363954 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 52408656 is about 7239.3822940911. The cubic root of 52408656 is about 374.2263302580.

The spelling of 52408656 in words is "fifty-two million, four hundred eight thousand, six hundred fifty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 363949 727898 1091847 1455796 2183694 2911592 3275541 4367388 5823184 6551082 8734776 13102164 17469552 26204328 52408656