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168960939 = 3719423461
BaseRepresentation
bin10100001001000…
…10001110101011
3102202221002211120
422010202032223
5321223222224
624433230323
74121100330
oct1204421653
9382832746
10168960939
1187412944
12487023a3
132900a3b4
1418622987
15ec77779
hexa1223ab

168960939 has 16 divisors (see below), whose sum is σ = 271015680. Its totient is φ = 91467360.

The previous prime is 168960929. The next prime is 168960947. The reversal of 168960939 is 939069861.

It is not a de Polignac number, because 168960939 - 24 = 168960923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168960891 and 168960900.

It is not an unprimeable number, because it can be changed into a prime (168960919) 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, 211332 + ... + 212129.

It is an arithmetic number, because the mean of its divisors is an integer number (16938480).

Almost surely, 2168960939 is an apocalyptic number.

168960939 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

168960939 is a deficient number, since it is larger than the sum of its proper divisors (102054741).

168960939 is a wasteful number, since it uses less digits than its factorization.

168960939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423490.

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 168960939 is about 12998.4975670267. The cubic root of 168960939 is about 552.8348825290.

The spelling of 168960939 in words is "one hundred sixty-eight million, nine hundred sixty thousand, nine hundred thirty-nine".

Divisors: 1 3 7 19 21 57 133 399 423461 1270383 2964227 8045759 8892681 24137277 56320313 168960939