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808345970 = 25541149417
BaseRepresentation
bin110000001011100…
…110000101110010
32002100001020012122
4300023212011302
53123414032340
6212113354242
726013553535
oct6013460562
92070036178
10808345970
11385321323
121a6868982
13cb615933
14794dca1c
154ae74db5
hex302e6172

808345970 has 16 divisors (see below), whose sum is σ = 1457722008. Its totient is φ = 322738560.

The previous prime is 808345969. The next prime is 808345999. The reversal of 808345970 is 79543808.

It can be written as a sum of positive squares in 4 ways, for example, as 728082289 + 80263681 = 26983^2 + 8959^2 .

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 7 ways as a sum of consecutive naturals, for example, 69299 + ... + 80118.

Almost surely, 2808345970 is an apocalyptic number.

808345970 is a deficient number, since it is larger than the sum of its proper divisors (649376038).

808345970 is a wasteful number, since it uses less digits than its factorization.

808345970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149965.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 808345970 is about 28431.4257468738. The cubic root of 808345970 is about 931.5348186956.

The spelling of 808345970 in words is "eight hundred eight million, three hundred forty-five thousand, nine hundred seventy".

Divisors: 1 2 5 10 541 1082 2705 5410 149417 298834 747085 1494170 80834597 161669194 404172985 808345970