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53679 = 329617
BaseRepresentation
bin1101000110101111
32201122010
431012233
53204204
61052303
7312333
oct150657
981563
1053679
113736a
1227093
131b582
14157c3
1510d89
hexd1af

53679 has 8 divisors (see below), whose sum is σ = 74160. Its totient is φ = 34496.

The previous prime is 53657. The next prime is 53681. The reversal of 53679 is 97635.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53679 - 27 = 53551 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222 + ... + 395.

It is an arithmetic number, because the mean of its divisors is an integer number (9270).

253679 is an apocalyptic number.

53679 is a deficient number, since it is larger than the sum of its proper divisors (20481).

53679 is a wasteful number, since it uses less digits than its factorization.

53679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649.

The product of its digits is 5670, while the sum is 30.

The square root of 53679 is about 231.6872892500. The cubic root of 53679 is about 37.7225872943.

Subtracting 53679 from its reverse (97635), we obtain a triangular number (43956 = T296).

The spelling of 53679 in words is "fifty-three thousand, six hundred seventy-nine".

Divisors: 1 3 29 87 617 1851 17893 53679