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168381070888 = 2331678955931
BaseRepresentation
bin1001110011010001001…
…0110011111000101000
3121002121202200122212211
42130310102303320220
510224321023232023
6205204142414504
715110432326132
oct2346422637050
9532552618784
10168381070888
11654567a7828
1228772591434
1312b55724474
148214a56052
1545a765ca0d
hex27344b3e28

168381070888 has 16 divisors (see below), whose sum is σ = 325898847360. Its totient is φ = 81474711600.

The previous prime is 168381070873. The next prime is 168381070901. The reversal of 168381070888 is 888070183861.

It is a super-2 number, since 2×1683810708882 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339477718 + ... + 339478213.

It is an arithmetic number, because the mean of its divisors is an integer number (20368677960).

Almost surely, 2168381070888 is an apocalyptic number.

It is an amenable number.

168381070888 is a deficient number, since it is larger than the sum of its proper divisors (157517776472).

168381070888 is a wasteful number, since it uses less digits than its factorization.

168381070888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678955968 (or 678955964 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 58.

The spelling of 168381070888 in words is "one hundred sixty-eight billion, three hundred eighty-one million, seventy thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 31 62 124 248 678955931 1357911862 2715823724 5431647448 21047633861 42095267722 84190535444 168381070888