Search a number
-
+
61313425125 = 3531912767759
BaseRepresentation
bin111001000110100100…
…001001111011100101
312212021001000201022020
4321012210021323211
52001032214101000
644100023253353
74300255341321
oct710644117345
9185231021266
1061313425125
1124003914877
12ba718aa259
135a218b5a14
142d790aa981
1518dcbe5ba0
hexe46909ee5

61313425125 has 64 divisors (see below), whose sum is σ = 108242534400. Its totient is φ = 30735028800.

The previous prime is 61313424971. The next prime is 61313425141. The reversal of 61313425125 is 52152431316.

61313425125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61313425125 - 211 = 61313423077 is a prime.

It is a super-2 number, since 2×613134251252 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 870996 + ... + 938754.

It is an arithmetic number, because the mean of its divisors is an integer number (1691289600).

Almost surely, 261313425125 is an apocalyptic number.

It is an amenable number.

61313425125 is a deficient number, since it is larger than the sum of its proper divisors (46929109275).

61313425125 is a wasteful number, since it uses less digits than its factorization.

61313425125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67923 (or 67913 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The spelling of 61313425125 in words is "sixty-one billion, three hundred thirteen million, four hundred twenty-five thousand, one hundred twenty-five".

Divisors: 1 3 5 15 19 25 57 75 95 125 127 285 375 381 475 635 1425 1905 2375 2413 3175 7125 7239 9525 12065 15875 36195 47625 60325 67759 180975 203277 301625 338795 904875 1016385 1287421 1693975 3862263 5081925 6437105 8469875 8605393 19311315 25409625 25816179 32185525 43026965 96556575 129080895 160927625 163502467 215134825 482782875 490507401 645404475 817512335 1075674125 2452537005 3227022375 4087561675 12262685025 20437808375 61313425125