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131413111413421 = 7916730732445671
BaseRepresentation
bin11101111000010011111111…
…110100110001101010101101
3122020021222012200102220012011
4131320103333310301222231
5114211033023010212141
61143254203331441221
736452166256425565
oct3570237764615255
9566258180386164
10131413111413421
1138965a95507482
12128a48a9156211
13584328466c546
1424645ddc55da5
15102d553816881
hex7784ffd31aad

131413111413421 has 16 divisors (see below), whose sum is σ = 134309508157440. Its totient is φ = 128552599758960.

The previous prime is 131413111413401. The next prime is 131413111413439. The reversal of 131413111413421 is 124314111314131.

It is a cyclic number.

It is not a de Polignac number, because 131413111413421 - 29 = 131413111412909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131413111413401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12172585 + ... + 20273086.

It is an arithmetic number, because the mean of its divisors is an integer number (8394344259840).

Almost surely, 2131413111413421 is an apocalyptic number.

It is an amenable number.

131413111413421 is a deficient number, since it is larger than the sum of its proper divisors (2896396744019).

131413111413421 is a wasteful number, since it uses less digits than its factorization.

131413111413421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32446224.

The product of its digits is 3456, while the sum is 31.

Adding to 131413111413421 its reverse (124314111314131), we get a palindrome (255727222727552).

The spelling of 131413111413421 in words is "one hundred thirty-one trillion, four hundred thirteen billion, one hundred eleven million, four hundred thirteen thousand, four hundred twenty-one".

Divisors: 1 79 167 307 13193 24253 51269 4050251 32445671 2563208009 5418427057 9960820997 428055737503 786904858763 1663457106499 131413111413421