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12542175093 = 372743114833
BaseRepresentation
bin10111010111001001…
…00110011101110101
31012101002022111202110
423223210212131311
5201141244100333
65432314201233
7622543505100
oct135344463565
935332274673
1012542175093
115356804868
122520423219
13124b5954a6
1486da31737
154d616a063
hex2eb926775

12542175093 has 24 divisors (see below), whose sum is σ = 19479521088. Its totient is φ = 7157248896.

The previous prime is 12542175049. The next prime is 12542175109. The reversal of 12542175093 is 39057124521.

It is not a de Polignac number, because 12542175093 - 220 = 12541126517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542175013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51805 + ... + 166637.

It is an arithmetic number, because the mean of its divisors is an integer number (811646712).

Almost surely, 212542175093 is an apocalyptic number.

It is an amenable number.

12542175093 is a deficient number, since it is larger than the sum of its proper divisors (6937345995).

12542175093 is a wasteful number, since it uses less digits than its factorization.

12542175093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115593 (or 115586 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The spelling of 12542175093 in words is "twelve billion, five hundred forty-two million, one hundred seventy-five thousand, ninety-three".

Divisors: 1 3 7 21 49 147 743 2229 5201 15603 36407 109221 114833 344499 803831 2411493 5626817 16880451 85320919 255962757 597246433 1791739299 4180725031 12542175093