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13132331144 = 233494703557
BaseRepresentation
bin11000011101011111…
…10111100010001000
31020220012210112122222
430032233313202020
5203343334044034
610011035233212
7643300654502
oct141657674210
936805715588
1013132331144
115629949839
122665ba8808
13131392555a
148c8174d72
1551cd9112e
hex30ebf7888

13132331144 has 16 divisors (see below), whose sum is σ = 24693679500. Its totient is φ = 6547349952.

The previous prime is 13132331141. The next prime is 13132331167. The reversal of 13132331144 is 44113323131.

It can be written as a sum of positive squares in 2 ways, for example, as 12246078244 + 886252900 = 110662^2 + 29770^2 .

It is not an unprimeable number, because it can be changed into a prime (13132331141) 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, 2348987 + ... + 2354570.

Almost surely, 213132331144 is an apocalyptic number.

It is an amenable number.

13132331144 is a deficient number, since it is larger than the sum of its proper divisors (11561348356).

13132331144 is a wasteful number, since it uses less digits than its factorization.

13132331144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4703912 (or 4703908 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

Adding to 13132331144 its reverse (44113323131), we get a palindrome (57245654275).

The spelling of 13132331144 in words is "thirteen billion, one hundred thirty-two million, three hundred thirty-one thousand, one hundred forty-four".

Divisors: 1 2 4 8 349 698 1396 2792 4703557 9407114 18814228 37628456 1641541393 3283082786 6566165572 13132331144