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807764972 = 227167227761
BaseRepresentation
bin110000001001011…
…000001111101100
32002021221201020012
4300021120033230
53123241434342
6212053112352
726005613630
oct6011301754
92067851205
10807764972
11384a64863
121a66286b8
13cb471351
14793cadc0
154adacb82
hex302583ec

807764972 has 48 divisors (see below), whose sum is σ = 1634508288. Its totient is φ = 342145920.

The previous prime is 807764953. The next prime is 807764981. The reversal of 807764972 is 279467708.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 807764972.

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 15 ways as a sum of consecutive naturals, for example, 1061072 + ... + 1061832.

It is an arithmetic number, because the mean of its divisors is an integer number (34052256).

Almost surely, 2807764972 is an apocalyptic number.

It is an amenable number.

807764972 is an abundant number, since it is smaller than the sum of its proper divisors (826743316).

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

807764972 is a wasteful number, since it uses less digits than its factorization.

807764972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166 (or 1164 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 50.

The square root of 807764972 is about 28421.2063783366. The cubic root of 807764972 is about 931.3115852430.

The spelling of 807764972 in words is "eight hundred seven million, seven hundred sixty-four thousand, nine hundred seventy-two".

Divisors: 1 2 4 7 14 28 167 227 334 454 668 761 908 1169 1522 1589 2338 3044 3178 4676 5327 6356 10654 21308 37909 75818 127087 151636 172747 254174 265363 345494 508348 530726 690988 889609 1061452 1209229 1779218 2418458 3558436 4836916 28848749 57697498 115394996 201941243 403882486 807764972