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12540675371 = 74143695733
BaseRepresentation
bin10111010110111101…
…11000010100101011
31012100222111022112012
423223132320110223
5201140403102441
65432222110135
7622524660530
oct135336702453
935328438465
1012540675371
115355980024
12251ba1b34b
13124b18b993
1486d760d87
154d5e709eb
hex2eb7b852b

12540675371 has 8 divisors (see below), whose sum is σ = 14681766624. Its totient is φ = 10486975680.

The previous prime is 12540675281. The next prime is 12540675373. The reversal of 12540675371 is 17357604521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12540675371 - 218 = 12540413227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (12540675373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21847580 + ... + 21848153.

It is an arithmetic number, because the mean of its divisors is an integer number (1835220828).

Almost surely, 212540675371 is an apocalyptic number.

12540675371 is a deficient number, since it is larger than the sum of its proper divisors (2141091253).

12540675371 is an equidigital number, since it uses as much as digits as its factorization.

12540675371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43695781.

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 12540675371 in words is "twelve billion, five hundred forty million, six hundred seventy-five thousand, three hundred seventy-one".

Divisors: 1 7 41 287 43695733 305870131 1791525053 12540675371