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53071880 = 2351326797
BaseRepresentation
bin1100101001110…
…1000000001000
310200212022221012
43022131000020
5102041300010
65133303052
71213050341
oct312350010
9120768835
1053071880
1127a59764
1215934a88
13acc26a4
1470970c8
1549d5005
hex329d008

53071880 has 16 divisors (see below), whose sum is σ = 119411820. Its totient is φ = 21228736.

The previous prime is 53071877. The next prime is 53071897. The reversal of 53071880 is 8817035.

It can be written as a sum of positive squares in 2 ways, for example, as 47416996 + 5654884 = 6886^2 + 2378^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663359 + ... + 663438.

Almost surely, 253071880 is an apocalyptic number.

It is an amenable number.

53071880 is an abundant number, since it is smaller than the sum of its proper divisors (66339940).

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

53071880 is a wasteful number, since it uses less digits than its factorization.

53071880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326808 (or 1326804 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 53071880 is about 7285.0449552491. The cubic root of 53071880 is about 375.7983111773.

The spelling of 53071880 in words is "fifty-three million, seventy-one thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 1326797 2653594 5307188 6633985 10614376 13267970 26535940 53071880