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12500389 = 1121759103
BaseRepresentation
bin101111101011…
…110110100101
3212112002022101
4233223312211
511200003024
61123532101
7211152166
oct57536645
925462271
1012500389
117068800
12422a031
1327889a5
14193576d
15116dc44
hexbebda5

12500389 has 24 divisors (see below), whose sum is σ = 14938560. Its totient is φ = 10412160.

The previous prime is 12500359. The next prime is 12500419. The reversal of 12500389 is 98300521.

It is an interprime number because it is at equal distance from previous prime (12500359) and next prime (12500419).

It is not a de Polignac number, because 12500389 - 25 = 12500357 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121312 + ... + 121414.

It is an arithmetic number, because the mean of its divisors is an integer number (622440).

Almost surely, 212500389 is an apocalyptic number.

It is an amenable number.

12500389 is a deficient number, since it is larger than the sum of its proper divisors (2438171).

12500389 is a wasteful number, since it uses less digits than its factorization.

12500389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 12500389 is about 3535.5889184123. The cubic root of 12500389 is about 232.0818490931.

The spelling of 12500389 in words is "twelve million, five hundred thousand, three hundred eighty-nine".

Divisors: 1 11 17 59 103 121 187 649 1003 1133 1751 2057 6077 7139 11033 12463 19261 66847 103309 121363 211871 735317 1136399 12500389