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13192512945 = 353907225109
BaseRepresentation
bin11000100100101010…
…11100010110110001
31021001102001002120120
430102111130112301
5204004240403240
610021025200453
7644631336603
oct142225342661
937042032516
1013192512945
11565a914267
122682190129
1313232371a1
148d215d173
155232ccad0
hex31255c5b1

13192512945 has 16 divisors (see below), whose sum is σ = 21113517120. Its totient is φ = 7034174784.

The previous prime is 13192512943. The next prime is 13192512959. The reversal of 13192512945 is 54921529131.

It is not a de Polignac number, because 13192512945 - 21 = 13192512943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13192512897 and 13192512906.

It is not an unprimeable number, because it can be changed into a prime (13192512943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53950 + ... + 171159.

It is an arithmetic number, because the mean of its divisors is an integer number (1319594820).

Almost surely, 213192512945 is an apocalyptic number.

13192512945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13192512945 is a deficient number, since it is larger than the sum of its proper divisors (7921004175).

13192512945 is a wasteful number, since it uses less digits than its factorization.

13192512945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229024.

The product of its digits is 97200, while the sum is 42.

The spelling of 13192512945 in words is "thirteen billion, one hundred ninety-two million, five hundred twelve thousand, nine hundred forty-five".

Divisors: 1 3 5 15 3907 11721 19535 58605 225109 675327 1125545 3376635 879500863 2638502589 4397504315 13192512945