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168448172 = 221731411949
BaseRepresentation
bin10100000101001…
…01000010101100
3102201222001110012
422002211002230
5321110320142
624414232352
74113533354
oct1202450254
9381861405
10168448172
11870a2672
12484b56b8
1328b8ab99
141852bb64
15ebc5882
hexa0a50ac

168448172 has 48 divisors (see below), whose sum is σ = 330220800. Its totient is φ = 74803200.

The previous prime is 168448169. The next prime is 168448177. The reversal of 168448172 is 271844861.

168448172 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (168448177) 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, 85454 + ... + 87402.

It is an arithmetic number, because the mean of its divisors is an integer number (6879600).

Almost surely, 2168448172 is an apocalyptic number.

It is an amenable number.

168448172 is a deficient number, since it is larger than the sum of its proper divisors (161772628).

168448172 is a wasteful number, since it uses less digits than its factorization.

168448172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042 (or 2040 counting only the distinct ones).

The product of its digits is 86016, while the sum is 41.

The square root of 168448172 is about 12978.7584922442. The cubic root of 168448172 is about 552.2750633254.

The spelling of 168448172 in words is "one hundred sixty-eight million, four hundred forty-eight thousand, one hundred seventy-two".

Divisors: 1 2 4 17 31 34 41 62 68 82 124 164 527 697 1054 1271 1394 1949 2108 2542 2788 3898 5084 7796 21607 33133 43214 60419 66266 79909 86428 120838 132532 159818 241676 319636 1027123 1358453 2054246 2477179 2716906 4108492 4954358 5433812 9908716 42112043 84224086 168448172