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12612312124 = 2216319344037
BaseRepresentation
bin10111011111100000…
…01001110000111100
31012112222021211200021
423233300021300330
5201312222441444
65443301341524
7624354612166
oct135760116074
935488254607
1012612312124
115392359855
12253ba078a4
13125cc814a9
1487908b936
154dc3c1584
hex2efc09c3c

12612312124 has 12 divisors (see below), whose sum is σ = 22206955624. Its totient is φ = 6267467664.

The previous prime is 12612312079. The next prime is 12612312161. The reversal of 12612312124 is 42121321621.

It is a super-2 number, since 2×126123121242 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9671367 + ... + 9672670.

Almost surely, 212612312124 is an apocalyptic number.

It is an amenable number.

12612312124 is a deficient number, since it is larger than the sum of its proper divisors (9594643500).

12612312124 is a wasteful number, since it uses less digits than its factorization.

12612312124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19344204 (or 19344202 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

Adding to 12612312124 its reverse (42121321621), we get a palindrome (54733633745).

The spelling of 12612312124 in words is "twelve billion, six hundred twelve million, three hundred twelve thousand, one hundred twenty-four".

Divisors: 1 2 4 163 326 652 19344037 38688074 77376148 3153078031 6306156062 12612312124