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12500274741 = 34166758247
BaseRepresentation
bin10111010010001001…
…10000111000110101
31012021011110202021120
423221010300320311
5201100032242431
65424220134153
7621524403453
oct135104607065
935234422246
1012500274741
115335096479
12250a397359
1312429b4996
148682459d3
154d2640196
hex2e9130e35

12500274741 has 4 divisors (see below), whose sum is σ = 16667032992. Its totient is φ = 8333516492.

The previous prime is 12500274737. The next prime is 12500274751. The reversal of 12500274741 is 14747200521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14747200521 = 34915733507.

It is a cyclic number.

It is not a de Polignac number, because 12500274741 - 22 = 12500274737 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500274751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2083379121 + ... + 2083379126.

It is an arithmetic number, because the mean of its divisors is an integer number (4166758248).

Almost surely, 212500274741 is an apocalyptic number.

It is an amenable number.

12500274741 is a deficient number, since it is larger than the sum of its proper divisors (4166758251).

12500274741 is an equidigital number, since it uses as much as digits as its factorization.

12500274741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4166758250.

The product of its (nonzero) digits is 15680, while the sum is 33.

The spelling of 12500274741 in words is "twelve billion, five hundred million, two hundred seventy-four thousand, seven hundred forty-one".

Divisors: 1 3 4166758247 12500274741