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53156808 = 23322113499
BaseRepresentation
bin1100101011000…
…1101111001000
310201000122102200
43022301233020
5102102004213
65135200200
71213553055
oct312615710
9121018380
1053156808
1128007551
1215976060
13b022243
1470ba02c
154a00273
hex32b1bc8

53156808 has 48 divisors (see below), whose sum is σ = 144690000. Its totient is φ = 17629920.

The previous prime is 53156801. The next prime is 53156819. The reversal of 53156808 is 80865135.

53156808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (53156801) by changing a digit.

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, 13443 + ... + 16941.

It is an arithmetic number, because the mean of its divisors is an integer number (3014375).

Almost surely, 253156808 is an apocalyptic number.

It is an amenable number.

53156808 is an abundant number, since it is smaller than the sum of its proper divisors (91533192).

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

53156808 is a wasteful number, since it uses less digits than its factorization.

53156808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3722 (or 3715 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 53156808 is about 7290.8715528392. The cubic root of 53156808 is about 375.9986607769.

The spelling of 53156808 in words is "fifty-three million, one hundred fifty-six thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 211 422 633 844 1266 1688 1899 2532 3499 3798 5064 6998 7596 10497 13996 15192 20994 27992 31491 41988 62982 83976 125964 251928 738289 1476578 2214867 2953156 4429734 5906312 6644601 8859468 13289202 17718936 26578404 53156808