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389082072 = 233128912577
BaseRepresentation
bin10111001100001…
…110101111011000
31000010010102021010
4113030032233120
51244101111242
6102335213520
712433100031
oct2714165730
91003112233
10389082072
1118a699135
12aa3772a0
13627baca2
1439961a88
152425889c
hex1730ebd8

389082072 has 32 divisors (see below), whose sum is σ = 973537200. Its totient is φ = 129583104.

The previous prime is 389082041. The next prime is 389082073. The reversal of 389082072 is 270280983.

It is a self number, because there is not a number n which added to its sum of digits gives 389082072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389082073) 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, 24648 + ... + 37224.

Almost surely, 2389082072 is an apocalyptic number.

It is an amenable number.

389082072 is an abundant number, since it is smaller than the sum of its proper divisors (584455128).

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

389082072 is a wasteful number, since it uses less digits than its factorization.

389082072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13875 (or 13871 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 389082072 is about 19725.1634213763. The cubic root of 389082072 is about 730.0407008019.

The spelling of 389082072 in words is "three hundred eighty-nine million, eighty-two thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 24 1289 2578 3867 5156 7734 10312 12577 15468 25154 30936 37731 50308 75462 100616 150924 301848 16211753 32423506 48635259 64847012 97270518 129694024 194541036 389082072