Search a number
-
+
72816876996 = 22331487401939
BaseRepresentation
bin100001111010000111…
…0010101110111000100
320221221201210121200020
41003310032111313010
52143112110030441
653241314215140
75155320146013
oct1036416256704
9227851717606
1072816876996
1128977257496
12121422844b0
136b35c03686
14374ab90a7a
151d62a80e66
hex10f4395dc4

72816876996 has 48 divisors (see below), whose sum is σ = 175747461120. Its totient is φ = 23441024160.

The previous prime is 72816876991. The next prime is 72816877043. The reversal of 72816876996 is 69967861827.

It is a self number, because there is not a number n which added to its sum of digits gives 72816876996.

It is not an unprimeable number, because it can be changed into a prime (72816876991) 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, 19806 + ... + 382133.

It is an arithmetic number, because the mean of its divisors is an integer number (3661405440).

Almost surely, 272816876996 is an apocalyptic number.

It is an amenable number.

72816876996 is an abundant number, since it is smaller than the sum of its proper divisors (102930584124).

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

72816876996 is a wasteful number, since it uses less digits than its factorization.

72816876996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402464 (or 402462 counting only the distinct ones).

The product of its digits is 109734912, while the sum is 69.

The spelling of 72816876996 in words is "seventy-two billion, eight hundred sixteen million, eight hundred seventy-six thousand, nine hundred ninety-six".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 487 974 1461 1948 2922 5844 15097 30194 45291 60388 90582 181164 401939 803878 1205817 1607756 2411634 4823268 12460109 24920218 37380327 49840436 74760654 149521308 195744293 391488586 587232879 782977172 1174465758 2348931516 6068073083 12136146166 18204219249 24272292332 36408438498 72816876996