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168392245 = 5713934613
BaseRepresentation
bin10100000100101…
…11011000110101
3102201212012201211
422002113120311
5321102022440
624413121421
74113211330
oct1202273065
9381765654
10168392245
118706464a
1248489271
1328b6b5a8
1418515617
15ebb3eea
hexa097635

168392245 has 16 divisors (see below), whose sum is σ = 232606080. Its totient is φ = 114634944.

The previous prime is 168392227. The next prime is 168392249. The reversal of 168392245 is 542293861.

It is a cyclic number.

It is not a de Polignac number, because 168392245 - 211 = 168390197 is a prime.

It is a super-2 number, since 2×1683922452 = 56711896352280050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 168392198 and 168392207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168392249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12442 + ... + 22171.

It is an arithmetic number, because the mean of its divisors is an integer number (14537880).

Almost surely, 2168392245 is an apocalyptic number.

It is an amenable number.

168392245 is a deficient number, since it is larger than the sum of its proper divisors (64213835).

168392245 is a wasteful number, since it uses less digits than its factorization.

168392245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34764.

The product of its digits is 103680, while the sum is 40.

The square root of 168392245 is about 12976.6037544498. The cubic root of 168392245 is about 552.2139357077.

The spelling of 168392245 in words is "one hundred sixty-eight million, three hundred ninety-two thousand, two hundred forty-five".

Divisors: 1 5 7 35 139 695 973 4865 34613 173065 242291 1211455 4811207 24056035 33678449 168392245