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13703828531 = 31743229743
BaseRepresentation
bin11001100001100111…
…11101010000110011
31022101001011121200212
430300303331100303
5211031140003111
610143452334335
7663410422601
oct146063752063
938331147625
1013703828531
1158a24aa228
1227a54743ab
1313a51518a3
1494001c871
1555312d98b
hex330cfd433

13703828531 has 4 divisors (see below), whose sum is σ = 13747058592. Its totient is φ = 13660598472.

The previous prime is 13703828521. The next prime is 13703828533. The reversal of 13703828531 is 13582830731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13582830731 = 17798990043.

It is a cyclic number.

It is not a de Polignac number, because 13703828531 - 222 = 13699634227 is a prime.

It is a super-2 number, since 2×137038285312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13703828533) 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, 21614555 + ... + 21615188.

It is an arithmetic number, because the mean of its divisors is an integer number (3436764648).

Almost surely, 213703828531 is an apocalyptic number.

13703828531 is a deficient number, since it is larger than the sum of its proper divisors (43230061).

13703828531 is an equidigital number, since it uses as much as digits as its factorization.

13703828531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43230060.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 13703828531 in words is "thirteen billion, seven hundred three million, eight hundred twenty-eight thousand, five hundred thirty-one".

Divisors: 1 317 43229743 13703828531