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13125300015525 = 3521953471722599
BaseRepresentation
bin1011111011111111100011…
…0110000101000110100101
31201110202200201120211021020
42332333320312011012211
53210021103300444100
643525402442441353
72523162112224165
oct276777066050645
951422621524236
1013125300015525
114200454756a35
12157b930503259
13742930c06239
143353a72085a5
1517b644aa75a0
hexbeff8d851a5

13125300015525 has 48 divisors (see below), whose sum is σ = 22846912704000. Its totient is φ = 6630486413760.

The previous prime is 13125300015523. The next prime is 13125300015637. The reversal of 13125300015525 is 52551000352131.

It is a happy number.

It is not a de Polignac number, because 13125300015525 - 21 = 13125300015523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13125300015521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6758176 + ... + 8480774.

It is an arithmetic number, because the mean of its divisors is an integer number (475977348000).

Almost surely, 213125300015525 is an apocalyptic number.

13125300015525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13125300015525 is a deficient number, since it is larger than the sum of its proper divisors (9721612688475).

13125300015525 is a wasteful number, since it uses less digits than its factorization.

13125300015525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727978 (or 1727973 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

Adding to 13125300015525 its reverse (52551000352131), we get a palindrome (65676300367656).

The spelling of 13125300015525 in words is "thirteen trillion, one hundred twenty-five billion, three hundred million, fifteen thousand, five hundred twenty-five".

Divisors: 1 3 5 15 19 25 57 75 95 285 475 1425 5347 16041 26735 80205 101593 133675 304779 401025 507965 1523895 1722599 2539825 5167797 7619475 8612995 25838985 32729381 43064975 98188143 129194925 163646905 490940715 818234525 2454703575 9210736853 27632210559 46053684265 138161052795 175004000207 230268421325 525012000621 690805263975 875020001035 2625060003105 4375100005175 13125300015525