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389156214 = 2317191571279
BaseRepresentation
bin10111001100100…
…000110101110110
31000010021011222010
4113030200311312
51244110444324
6102340545050
712433526136
oct2714406566
91003234863
10389156214
1118a739907
12aa3b2186
1362815965
1439980ac6
1524270829
hex17320d76

389156214 has 64 divisors (see below), whose sum is σ = 873676800. Its totient is φ = 114835968.

The previous prime is 389156213. The next prime is 389156219. The reversal of 389156214 is 412651983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389156213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 303627 + ... + 304905.

It is an arithmetic number, because the mean of its divisors is an integer number (13651200).

Almost surely, 2389156214 is an apocalyptic number.

389156214 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

389156214 is an abundant number, since it is smaller than the sum of its proper divisors (484520586).

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

389156214 is a wasteful number, since it uses less digits than its factorization.

389156214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477.

The product of its digits is 51840, while the sum is 39.

The square root of 389156214 is about 19727.0427079175. The cubic root of 389156214 is about 730.0870691167.

The spelling of 389156214 in words is "three hundred eighty-nine million, one hundred fifty-six thousand, two hundred fourteen".

Divisors: 1 2 3 6 17 19 34 38 51 57 102 114 157 314 323 471 646 942 969 1279 1938 2558 2669 2983 3837 5338 5966 7674 8007 8949 16014 17898 21743 24301 43486 48602 50711 65229 72903 101422 130458 145806 152133 200803 304266 401606 413117 602409 826234 1204818 1239351 2478702 3413651 3815257 6827302 7630514 10240953 11445771 20481906 22891542 64859369 129718738 194578107 389156214