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13100145525 = 335219407623
BaseRepresentation
bin11000011001101010…
…00101101101110101
31020210222020100022000
430030311011231311
5203312114124100
610003525325513
7642430254045
oct141465055565
936728210260
1013100145525
115612766255
122657266899
13130a0667cc
148c3b97725
1551a134900
hex30cd45b75

13100145525 has 24 divisors (see below), whose sum is σ = 24065453760. Its totient is φ = 6986743920.

The previous prime is 13100145503. The next prime is 13100145563. The reversal of 13100145525 is 52554100131.

13100145525 is a `hidden beast` number, since 1 + 3 + 100 + 1 + 4 + 552 + 5 = 666.

It is not a de Polignac number, because 13100145525 - 25 = 13100145493 is a prime.

It is a super-2 number, since 2×131001455252 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9703137 + ... + 9704486.

It is an arithmetic number, because the mean of its divisors is an integer number (1002727240).

Almost surely, 213100145525 is an apocalyptic number.

13100145525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13100145525 is a deficient number, since it is larger than the sum of its proper divisors (10965308235).

13100145525 is a wasteful number, since it uses less digits than its factorization.

13100145525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19407642 (or 19407631 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 13100145525 its reverse (52554100131), we get a palindrome (65654245656).

The spelling of 13100145525 in words is "thirteen billion, one hundred million, one hundred forty-five thousand, five hundred twenty-five".

Divisors: 1 3 5 9 15 25 27 45 75 135 225 675 19407623 58222869 97038115 174668607 291114345 485190575 524005821 873343035 1455571725 2620029105 4366715175 13100145525