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384068172 = 22356956249
BaseRepresentation
bin10110111001000…
…110101001001100
3222202200200111010
4112321012221030
51241310140142
6102035525220
712342345165
oct2671065114
9882620433
10384068172
11187884114
12a8759810
1361753a97
143901876c
1523ab7e9c
hex16e46a4c

384068172 has 24 divisors (see below), whose sum is σ = 897750000. Its totient is φ = 127795456.

The previous prime is 384068137. The next prime is 384068173. The reversal of 384068172 is 271860483.

It is a self number, because there is not a number n which added to its sum of digits gives 384068172.

It is not an unprimeable number, because it can be changed into a prime (384068173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21297 + ... + 34952.

It is an arithmetic number, because the mean of its divisors is an integer number (37406250).

Almost surely, 2384068172 is an apocalyptic number.

It is an amenable number.

384068172 is an abundant number, since it is smaller than the sum of its proper divisors (513681828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

384068172 is a wasteful number, since it uses less digits than its factorization.

384068172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56825 (or 56823 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 384068172 is about 19597.6573089745. The cubic root of 384068172 is about 726.8912473464.

The spelling of 384068172 in words is "three hundred eighty-four million, sixty-eight thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 12 569 1138 1707 2276 3414 6828 56249 112498 168747 224996 337494 674988 32005681 64011362 96017043 128022724 192034086 384068172