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12515152012 = 22112383148997
BaseRepresentation
bin10111010011111011…
…00001000010001100
31012022012110121001121
423221331201002030
5201112334331022
65425511050324
7622065015436
oct135175410214
935265417047
1012515152012
115342527a40
1225133709a4
131245ac34bc
1486a1d9656
154d3acd2c7
hex2e9f6108c

12515152012 has 48 divisors (see below), whose sum is σ = 25231917312. Its totient is φ = 5375775680.

The previous prime is 12515152007. The next prime is 12515152033. The reversal of 12515152012 is 21025151521.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9498 + ... + 158494.

It is an arithmetic number, because the mean of its divisors is an integer number (525664944).

Almost surely, 212515152012 is an apocalyptic number.

It is an amenable number.

12515152012 is an abundant number, since it is smaller than the sum of its proper divisors (12716765300).

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

12515152012 is a wasteful number, since it uses less digits than its factorization.

12515152012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149118 (or 149116 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 25.

The spelling of 12515152012 in words is "twelve billion, five hundred fifteen million, one hundred fifty-two thousand, twelve".

Divisors: 1 2 4 11 22 23 44 46 83 92 166 253 332 506 913 1012 1826 1909 3652 3818 7636 20999 41998 83996 148997 297994 595988 1638967 3277934 3426931 6555868 6853862 12366751 13707724 24733502 37696241 49467004 75392482 136034261 150784964 272068522 284435273 544137044 568870546 1137741092 3128788003 6257576006 12515152012