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12158130 = 235596869
BaseRepresentation
bin101110011000…
…010010110010
3211212200211010
4232120102302
511103030010
61112331350
7205225305
oct56302262
924780733
1012158130
116954646
1240a3b56
132698c7a
141886b3c
151102620
hexb984b2

12158130 has 32 divisors (see below), whose sum is σ = 29678400. Its totient is φ = 3186752.

The previous prime is 12158129. The next prime is 12158131. The reversal of 12158130 is 3185121.

It is an interprime number because it is at equal distance from previous prime (12158129) and next prime (12158131).

It is a junction number, because it is equal to n+sod(n) for n = 12158097 and 12158106.

It is not an unprimeable number, because it can be changed into a prime (12158131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1665 + ... + 5204.

It is an arithmetic number, because the mean of its divisors is an integer number (927450).

Almost surely, 212158130 is an apocalyptic number.

12158130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12158130 is an abundant number, since it is smaller than the sum of its proper divisors (17520270).

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

12158130 is a wasteful number, since it uses less digits than its factorization.

12158130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6938.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 12158130 is about 3486.8510148843. The cubic root of 12158130 is about 229.9440947930.

The spelling of 12158130 in words is "twelve million, one hundred fifty-eight thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 59 118 177 295 354 590 885 1770 6869 13738 20607 34345 41214 68690 103035 206070 405271 810542 1215813 2026355 2431626 4052710 6079065 12158130