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769028680 = 23576740993
BaseRepresentation
bin101101110101100…
…111001001001000
31222121001201000201
4231311213021020
53033332404210
6204150541544
725025431060
oct5565471110
91877051021
10769028680
113651076a2
121956678b4
13c342aa74
14741c63a0
15477aa53a
hex2dd67248

769028680 has 64 divisors (see below), whose sum is σ = 2007066240. Its totient is φ = 259725312.

The previous prime is 769028669. The next prime is 769028693. The reversal of 769028680 is 86820967.

769028680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×7690286802 = 1182810221325084800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 769028680.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1737 + ... + 39256.

It is an arithmetic number, because the mean of its divisors is an integer number (31360410).

Almost surely, 2769028680 is an apocalyptic number.

769028680 is a gapful number since it is divisible by the number (70) 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 769028680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1003533120).

769028680 is an abundant number, since it is smaller than the sum of its proper divisors (1238037560).

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

769028680 is a wasteful number, since it uses less digits than its factorization.

769028680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41078 (or 41074 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 769028680 is about 27731.3663565285. The cubic root of 769028680 is about 916.1800812971.

The spelling of 769028680 in words is "seven hundred sixty-nine million, twenty-eight thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 67 70 134 140 268 280 335 469 536 670 938 1340 1876 2345 2680 3752 4690 9380 18760 40993 81986 163972 204965 286951 327944 409930 573902 819860 1147804 1434755 1639720 2295608 2746531 2869510 5493062 5739020 10986124 11478040 13732655 19225717 21972248 27465310 38451434 54930620 76902868 96128585 109861240 153805736 192257170 384514340 769028680