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163134870 = 23510974957
BaseRepresentation
bin10011011100100…
…11110110010110
3102100222002222020
421232103312112
5313230303440
624104314010
74020423603
oct1156236626
9370862866
10163134870
11840a3708
1246772906
1327a4a612
14179476aa
15e4c63d0
hex9b93d96

163134870 has 32 divisors (see below), whose sum is σ = 391959648. Its totient is φ = 43454208.

The previous prime is 163134821. The next prime is 163134871. The reversal of 163134870 is 78431361.

It is a super-2 number, since 2×1631348702 = 53225971619833800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163134871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30432 + ... + 35388.

It is an arithmetic number, because the mean of its divisors is an integer number (12248739).

Almost surely, 2163134870 is an apocalyptic number.

163134870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163134870 is an abundant number, since it is smaller than the sum of its proper divisors (228824778).

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

163134870 is a wasteful number, since it uses less digits than its factorization.

163134870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6064.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 163134870 is about 12772.4261595047. The cubic root of 163134870 is about 546.4061771212.

The spelling of 163134870 in words is "one hundred sixty-three million, one hundred thirty-four thousand, eight hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 1097 2194 3291 4957 5485 6582 9914 10970 14871 16455 24785 29742 32910 49570 74355 148710 5437829 10875658 16313487 27189145 32626974 54378290 81567435 163134870