Search a number
-
+
769180864 = 263728779
BaseRepresentation
bin101101110110001…
…100010011000000
31222121100102210011
4231312030103000
53033402241424
6204154114304
725026633544
oct5566142300
91877312704
10769180864
11365200a71
1219571b994
13c348210a
1474225a24
15477da694
hex2dd8c4c0

769180864 has 42 divisors (see below), whose sum is σ = 1568889420. Its totient is φ = 374153472.

The previous prime is 769180847. The next prime is 769180889. The reversal of 769180864 is 468081967.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83227 + ... + 92005.

It is an arithmetic number, because the mean of its divisors is an integer number (37354510).

Almost surely, 2769180864 is an apocalyptic number.

769180864 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 769180864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (784444710).

769180864 is an abundant number, since it is smaller than the sum of its proper divisors (799708556).

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

769180864 is an equidigital number, since it uses as much as digits as its factorization.

769180864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8865 (or 8818 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 769180864 is about 27734.1101173266. The cubic root of 769180864 is about 916.2405119663.

The spelling of 769180864 in words is "seven hundred sixty-nine million, one hundred eighty thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 16 32 37 64 74 148 296 592 1184 1369 2368 2738 5476 8779 10952 17558 21904 35116 43808 70232 87616 140464 280928 324823 561856 649646 1299292 2598584 5197168 10394336 12018451 20788672 24036902 48073804 96147608 192295216 384590432 769180864