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13131301432401 = 322970171771041
BaseRepresentation
bin1011111100010101111010…
…0011101010110001010001
31201111100011222022101112100
42333011132203222301101
53210120401131314101
643532234145551013
72523463614353325
oct277053643526121
951440158271470
1013131301432401
114202a54365299
121580b26345469
13743379379b99
143357b62a5985
1517b8968bee86
hexbf15e8eac51

13131301432401 has 24 divisors (see below), whose sum is σ = 19649475878760. Its totient is φ = 8440274304000.

The previous prime is 13131301432393. The next prime is 13131301432421. The reversal of 13131301432401 is 10423410313131.

13131301432401 is a `hidden beast` number, since 1 + 3 + 1 + 31 + 301 + 4 + 324 + 0 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3514331369025 + 9616970063376 = 1874655^2 + 3101124^2 .

It is not a de Polignac number, because 13131301432401 - 23 = 13131301432393 is a prime.

It is a super-3 number, since 3×131313014324013 (a number of 40 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13131301432421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35702560 + ... + 36068481.

It is an arithmetic number, because the mean of its divisors is an integer number (818728161615).

Almost surely, 213131301432401 is an apocalyptic number.

It is an amenable number.

13131301432401 is a deficient number, since it is larger than the sum of its proper divisors (6518174446359).

13131301432401 is a wasteful number, since it uses less digits than its factorization.

13131301432401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71771777 (or 71771774 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 13131301432401 its reverse (10423410313131), we get a palindrome (23554711745532).

The spelling of 13131301432401 in words is "thirteen trillion, one hundred thirty-one billion, three hundred one million, four hundred thirty-two thousand, four hundred one".

Divisors: 1 3 9 29 87 261 701 2103 6309 20329 60987 182961 71771041 215313123 645939369 2081360189 6244080567 18732241701 50311499741 150934499223 452803497669 1459033492489 4377100477467 13131301432401