Search a number
-
+
71980753771051 = 277379685641997
BaseRepresentation
bin10000010111011101010011…
…010000100101101000101011
3100102212021220111021220000021
4100113131103100211220223
533413313040431133201
6413031300215021311
721106303115630326
oct2027352320455053
9312767814256007
1071980753771051
1120a31958a73274
1280a642896a837
1331219a9aab508
1413abc5c1a37bd
1584c5b7eebea1
hex417753425a2b

71980753771051 has 8 divisors (see below), whose sum is σ = 72431220668720. Its totient is φ = 71531658158688.

The previous prime is 71980753771039. The next prime is 71980753771153. The reversal of 71980753771051 is 15017735708917.

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 71980753771051 - 27 = 71980753770923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71980753771021) 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, 342716016 + ... + 342925981.

It is an arithmetic number, because the mean of its divisors is an integer number (9053902583590).

Almost surely, 271980753771051 is an apocalyptic number.

71980753771051 is a deficient number, since it is larger than the sum of its proper divisors (450466897669).

71980753771051 is a wasteful number, since it uses less digits than its factorization.

71980753771051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685642653.

The product of its (nonzero) digits is 12965400, while the sum is 61.

The spelling of 71980753771051 in words is "seventy-one trillion, nine hundred eighty billion, seven hundred fifty-three million, seven hundred seventy-one thousand, fifty-one".

Divisors: 1 277 379 104983 685641997 189922833169 259858316863 71980753771051