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168130936 = 2323390199
BaseRepresentation
bin10100000010101…
…11100101111000
3102201100221021201
422001113211320
5321020142221
624403343544
74111042441
oct1201274570
9381327251
10168130936
11869a6296
1248381bb4
1328aa967c
14184882c8
15eb61891
hexa057978

168130936 has 16 divisors (see below), whose sum is σ = 316602000. Its totient is φ = 83703744.

The previous prime is 168130933. The next prime is 168130979. The reversal of 168130936 is 639031861.

168130936 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 168130895 and 168130904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168130931) 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 3 ways as a sum of consecutive naturals, for example, 43236 + ... + 46963.

It is an arithmetic number, because the mean of its divisors is an integer number (19787625).

Almost surely, 2168130936 is an apocalyptic number.

It is an amenable number.

168130936 is a deficient number, since it is larger than the sum of its proper divisors (148471064).

168130936 is a wasteful number, since it uses less digits than its factorization.

168130936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90438 (or 90434 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 168130936 is about 12966.5313789001. The cubic root of 168130936 is about 551.9281482477.

The spelling of 168130936 in words is "one hundred sixty-eight million, one hundred thirty thousand, nine hundred thirty-six".

Divisors: 1 2 4 8 233 466 932 1864 90199 180398 360796 721592 21016367 42032734 84065468 168130936