Search a number
-
+
72896712 = 2337261987
BaseRepresentation
bin1000101100001…
…01000011001000
312002011112111020
410112011003020
5122130143322
611122232440
71543416600
oct426050310
9162145436
1072896712
113816a419
12204b5720
1312144165
149977c00
1565ee05c
hex45850c8

72896712 has 48 divisors (see below), whose sum is σ = 211998960. Its totient is φ = 20827296.

The previous prime is 72896701. The next prime is 72896713. The reversal of 72896712 is 21769827.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (72896713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29818 + ... + 32169.

It is an arithmetic number, because the mean of its divisors is an integer number (4416645).

Almost surely, 272896712 is an apocalyptic number.

It is an amenable number.

72896712 is an abundant number, since it is smaller than the sum of its proper divisors (139102248).

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

72896712 is a wasteful number, since it uses less digits than its factorization.

72896712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62010 (or 61999 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 72896712 is about 8537.9571327104. The cubic root of 72896712 is about 417.7367144599.

The spelling of 72896712 in words is "seventy-two million, eight hundred ninety-six thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 49 56 84 98 147 168 196 294 392 588 1176 61987 123974 185961 247948 371922 433909 495896 743844 867818 1301727 1487688 1735636 2603454 3037363 3471272 5206908 6074726 9112089 10413816 12149452 18224178 24298904 36448356 72896712