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12190149 = 333531279
BaseRepresentation
bin101110100000…
…000111000101
3211221022202000
4232200013011
511110041044
61113135513
7205420536
oct56400705
924838660
1012190149
116976704
1240ba599
1326aa70a
14189468d
15110bd69
hexba01c5

12190149 has 16 divisors (see below), whose sum is σ = 18124800. Its totient is φ = 8097408.

The previous prime is 12190147. The next prime is 12190151. The reversal of 12190149 is 94109121.

It is an interprime number because it is at equal distance from previous prime (12190147) and next prime (12190151).

It is not a de Polignac number, because 12190149 - 21 = 12190147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12190147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8892 + ... + 10170.

It is an arithmetic number, because the mean of its divisors is an integer number (1132800).

Almost surely, 212190149 is an apocalyptic number.

It is an amenable number.

12190149 is a deficient number, since it is larger than the sum of its proper divisors (5934651).

12190149 is a wasteful number, since it uses less digits than its factorization.

12190149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641 (or 1635 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 12190149 is about 3491.4393879889. The cubic root of 12190149 is about 230.1457740035.

The spelling of 12190149 in words is "twelve million, one hundred ninety thousand, one hundred forty-nine".

Divisors: 1 3 9 27 353 1059 1279 3177 3837 9531 11511 34533 451487 1354461 4063383 12190149