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12158310306 = 236730244553
BaseRepresentation
bin10110101001011000…
…10001011110100010
31011101100000011021010
423110230101132202
5144400011412211
65330242441350
7610202634552
oct132454213642
934340004233
1012158310306
11517a05a53a
122433963256
1311b9bb316c
14834a6b162
154b25e24a6
hex2d4b117a2

12158310306 has 16 divisors (see below), whose sum is σ = 24679556064. Its totient is φ = 3992280864.

The previous prime is 12158310287. The next prime is 12158310317. The reversal of 12158310306 is 60301385121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15121875 + ... + 15122678.

It is an arithmetic number, because the mean of its divisors is an integer number (1542472254).

Almost surely, 212158310306 is an apocalyptic number.

12158310306 is an abundant number, since it is smaller than the sum of its proper divisors (12521245758).

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

12158310306 is a wasteful number, since it uses less digits than its factorization.

12158310306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30244625.

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 12158310306 its reverse (60301385121), we get a palindrome (72459695427).

The spelling of 12158310306 in words is "twelve billion, one hundred fifty-eight million, three hundred ten thousand, three hundred six".

Divisors: 1 2 3 6 67 134 201 402 30244553 60489106 90733659 181467318 2026385051 4052770102 6079155153 12158310306