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13739781143 = 114729390703
BaseRepresentation
bin11001100101111010…
…00110110000010111
31022110112211012102002
430302331012300113
5211114340444033
610151215105515
7664325132654
oct146275066027
938415735362
1013739781143
115910825a30
1227b551229b
1313ac72c11a
14944adac2b
155563813e8
hex332f46c17

13739781143 has 16 divisors (see below), whose sum is σ = 15360178176. Its totient is φ = 12183092640.

The previous prime is 13739781071. The next prime is 13739781179. The reversal of 13739781143 is 34118793731.

It is a cyclic number.

It is not a de Polignac number, because 13739781143 - 212 = 13739777047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13739783143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106130 + ... + 196832.

It is an arithmetic number, because the mean of its divisors is an integer number (960011136).

Almost surely, 213739781143 is an apocalyptic number.

13739781143 is a deficient number, since it is larger than the sum of its proper divisors (1620397033).

13739781143 is a wasteful number, since it uses less digits than its factorization.

13739781143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91054.

The product of its digits is 381024, while the sum is 47.

The spelling of 13739781143 in words is "thirteen billion, seven hundred thirty-nine million, seven hundred eighty-one thousand, one hundred forty-three".

Divisors: 1 11 47 293 517 3223 13771 90703 151481 997733 4263041 26575979 46893451 292335769 1249071013 13739781143