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13180019501 = 112967112643
BaseRepresentation
bin11000100011001011…
…10010001100101101
31021000112112100210102
430101211302030231
5203443041111001
610015501320445
7644420213555
oct142145621455
937015470712
1013180019501
115653860800
122679b66125
13132078170c
148d062a165
15522160e6b
hex31197232d

13180019501 has 12 divisors (see below), whose sum is σ = 14502239136. Its totient is φ = 11969338920.

The previous prime is 13180019459. The next prime is 13180019519. The reversal of 13180019501 is 10591008131.

It is a de Polignac number, because none of the positive numbers 2k-13180019501 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13180019561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60686 + ... + 173328.

It is an arithmetic number, because the mean of its divisors is an integer number (1208519928).

Almost surely, 213180019501 is an apocalyptic number.

13180019501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13180019501 is a deficient number, since it is larger than the sum of its proper divisors (1322219635).

13180019501 is a wasteful number, since it uses less digits than its factorization.

13180019501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113632 (or 113621 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 29.

The spelling of 13180019501 in words is "thirteen billion, one hundred eighty million, nineteen thousand, five hundred one".

Divisors: 1 11 121 967 10637 112643 117007 1239073 13629803 108925781 1198183591 13180019501