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12745253492 = 2243104970639
BaseRepresentation
bin10111101111010110…
…10010001001110100
31012220020102221221122
423313223102021310
5202100241102432
65504411003112
7630560603306
oct136753221164
935806387848
1012745253492
1154503aa654
122578439498
131281689a1a
1488c9b5976
154e8dd1612
hex2f7ad2274

12745253492 has 24 divisors (see below), whose sum is σ = 22844976000. Its totient is φ = 6218404416.

The previous prime is 12745253491. The next prime is 12745253503. The reversal of 12745253492 is 29435254721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12745253491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145109 + ... + 215747.

It is an arithmetic number, because the mean of its divisors is an integer number (951874000).

Almost surely, 212745253492 is an apocalyptic number.

It is an amenable number.

12745253492 is a deficient number, since it is larger than the sum of its proper divisors (10099722508).

12745253492 is a wasteful number, since it uses less digits than its factorization.

12745253492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71735 (or 71733 counting only the distinct ones).

The product of its digits is 604800, while the sum is 44.

The spelling of 12745253492 in words is "twelve billion, seven hundred forty-five million, two hundred fifty-three thousand, four hundred ninety-two".

Divisors: 1 2 4 43 86 172 1049 2098 4196 45107 70639 90214 141278 180428 282556 3037477 6074954 12149908 74100311 148200622 296401244 3186313373 6372626746 12745253492