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163042351456 = 2543118490081
BaseRepresentation
bin1001011111011000010…
…1001101100101100000
3120120211200221121121111
42113312011031211200
510132402320221311
6202522311233104
714531225056345
oct2276605154540
9516750847544
10163042351456
116316717a906
1227722678794
13124b465c09a
147c699c27cc
154393ae9d21
hex25f614d960

163042351456 has 24 divisors (see below), whose sum is σ = 328454507304. Its totient is φ = 79625333760.

The previous prime is 163042351441. The next prime is 163042351457. The reversal of 163042351456 is 654153240361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163042351457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59243665 + ... + 59246416.

It is an arithmetic number, because the mean of its divisors is an integer number (13685604471).

Almost surely, 2163042351456 is an apocalyptic number.

163042351456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

163042351456 is an abundant number, since it is smaller than the sum of its proper divisors (165412155848).

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

163042351456 is a wasteful number, since it uses less digits than its factorization.

163042351456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118490134 (or 118490126 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 163042351456 in words is "one hundred sixty-three billion, forty-two million, three hundred fifty-one thousand, four hundred fifty-six".

Divisors: 1 2 4 8 16 32 43 86 172 344 688 1376 118490081 236980162 473960324 947920648 1895841296 3791682592 5095073483 10190146966 20380293932 40760587864 81521175728 163042351456