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13700375231 = 109371252663
BaseRepresentation
bin11001100001001101…
…10010001010111111
31022100210200011122212
430300212302022333
5211024244001411
610143250331035
7663336160634
oct146046621277
938323604585
1013700375231
1158a0560764
1227a4289a7b
1313a4512b0a
1493d7a018b
15552b9a68b
hex3309b22bf

13700375231 has 4 divisors (see below), whose sum is σ = 13701638832. Its totient is φ = 13699111632.

The previous prime is 13700375219. The next prime is 13700375233. The reversal of 13700375231 is 13257300731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13257300731 = 19336858407.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13700375231 is a prime.

It is a super-2 number, since 2×137003752312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13700375233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615395 + ... + 637268.

It is an arithmetic number, because the mean of its divisors is an integer number (3425409708).

Almost surely, 213700375231 is an apocalyptic number.

13700375231 is a deficient number, since it is larger than the sum of its proper divisors (1263601).

13700375231 is a wasteful number, since it uses less digits than its factorization.

13700375231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263600.

The product of its (nonzero) digits is 13230, while the sum is 32.

Adding to 13700375231 its reverse (13257300731), we get a palindrome (26957675962).

The spelling of 13700375231 in words is "thirteen billion, seven hundred million, three hundred seventy-five thousand, two hundred thirty-one".

Divisors: 1 10937 1252663 13700375231