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163140824 = 23711264839
BaseRepresentation
bin10011011100101…
…01010011011000
3102100222102010202
421232111103120
5313231001244
624104401332
74020450140
oct1156252330
9370872122
10163140824
11840a8130
1246776248
1327a50242
1417949920
15e4c804e
hex9b954d8

163140824 has 32 divisors (see below), whose sum is σ = 381369600. Its totient is φ = 63561120.

The previous prime is 163140811. The next prime is 163140871. The reversal of 163140824 is 428041361.

163140824 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1631408242 = 53229856910797952, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131804 + ... + 133035.

It is an arithmetic number, because the mean of its divisors is an integer number (11917800).

Almost surely, 2163140824 is an apocalyptic number.

163140824 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

163140824 is an abundant number, since it is smaller than the sum of its proper divisors (218228776).

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

163140824 is a wasteful number, since it uses less digits than its factorization.

163140824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264863 (or 264859 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 163140824 is about 12772.6592376059. The cubic root of 163140824 is about 546.4128245102.

The spelling of 163140824 in words is "one hundred sixty-three million, one hundred forty thousand, eight hundred twenty-four".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 264839 529678 1059356 1853873 2118712 2913229 3707746 5826458 7415492 11652916 14830984 20392603 23305832 40785206 81570412 163140824