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168044319 = 32109171299
BaseRepresentation
bin10100000010000…
…10011100011111
3102201012112110200
422001002130133
5321004404234
624401434543
74110232062
oct1201023437
9381175420
10168044319
1186947203
124833ba53
1328a79111
14184648d9
15eb45d99
hexa04271f

168044319 has 12 divisors (see below), whose sum is σ = 244959000. Its totient is φ = 111001104.

The previous prime is 168044287. The next prime is 168044323. The reversal of 168044319 is 913440861.

It is not a de Polignac number, because 168044319 - 25 = 168044287 is a prime.

It is a super-2 number, since 2×1680443192 = 56477786296347522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168044329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84669 + ... + 86630.

It is an arithmetic number, because the mean of its divisors is an integer number (20413250).

Almost surely, 2168044319 is an apocalyptic number.

168044319 is a deficient number, since it is larger than the sum of its proper divisors (76914681).

168044319 is a wasteful number, since it uses less digits than its factorization.

168044319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171414 (or 171411 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 168044319 is about 12963.1909266199. The cubic root of 168044319 is about 551.8333519469.

The spelling of 168044319 in words is "one hundred sixty-eight million, forty-four thousand, three hundred nineteen".

Divisors: 1 3 9 109 327 981 171299 513897 1541691 18671591 56014773 168044319