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53081679 = 373976367
BaseRepresentation
bin1100101001111…
…1011001001111
310200212211101010
43022133121033
5102042103204
65133420303
71213121040
oct312373117
9120784333
1053081679
1127a66062
121593a693
13acc6ca1
14709a8c7
1549d7d89
hex329f64f

53081679 has 16 divisors (see below), whose sum is σ = 81102848. Its totient is φ = 30251232.

The previous prime is 53081671. The next prime is 53081681. The reversal of 53081679 is 97618035.

It is not a de Polignac number, because 53081679 - 23 = 53081671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53081671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5154 + ... + 11520.

It is an arithmetic number, because the mean of its divisors is an integer number (5068928).

Almost surely, 253081679 is an apocalyptic number.

53081679 is a deficient number, since it is larger than the sum of its proper divisors (28021169).

53081679 is a wasteful number, since it uses less digits than its factorization.

53081679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6774.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 53081679 is about 7285.7174663859. The cubic root of 53081679 is about 375.8214384343.

The spelling of 53081679 in words is "fifty-three million, eighty-one thousand, six hundred seventy-nine".

Divisors: 1 3 7 21 397 1191 2779 6367 8337 19101 44569 133707 2527699 7583097 17693893 53081679