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389867412 = 223114368687
BaseRepresentation
bin10111001111001…
…110011110010100
31000011121022112210
4113033032132110
51244301224122
6102404113420
712442550454
oct2717163624
91004538483
10389867412
11190085180
12aa695870
1362a0459c
1439ac7d64
152436140c
hex173ce794

389867412 has 48 divisors (see below), whose sum is σ = 1015483392. Its totient is φ = 115392480.

The previous prime is 389867371. The next prime is 389867431. The reversal of 389867412 is 214768983.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28668 + ... + 40019.

It is an arithmetic number, because the mean of its divisors is an integer number (21155904).

Almost surely, 2389867412 is an apocalyptic number.

It is an amenable number.

389867412 is an abundant number, since it is smaller than the sum of its proper divisors (625615980).

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

389867412 is a wasteful number, since it uses less digits than its factorization.

389867412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68748 (or 68746 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 389867412 is about 19745.0604455899. The cubic root of 389867412 is about 730.5315525548.

The spelling of 389867412 in words is "three hundred eighty-nine million, eight hundred sixty-seven thousand, four hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 43 44 66 86 129 132 172 258 473 516 946 1419 1892 2838 5676 68687 137374 206061 274748 412122 755557 824244 1511114 2266671 2953541 3022228 4533342 5907082 8860623 9066684 11814164 17721246 32488951 35442492 64977902 97466853 129955804 194933706 389867412