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13730371 = 31343867
BaseRepresentation
bin110100011000…
…001001000011
3221211120112021
4310120021003
512003332441
61210142311
7224464144
oct64301103
927746467
1013730371
117828916
124721997
132ac97a5
141b75acb
1513133d1
hexd18243

13730371 has 4 divisors (see below), whose sum is σ = 13774552. Its totient is φ = 13686192.

The previous prime is 13730363. The next prime is 13730383. The reversal of 13730371 is 17303731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13730371 - 23 = 13730363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13730341) 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, 21621 + ... + 22246.

It is an arithmetic number, because the mean of its divisors is an integer number (3443638).

Almost surely, 213730371 is an apocalyptic number.

13730371 is a deficient number, since it is larger than the sum of its proper divisors (44181).

13730371 is an equidigital number, since it uses as much as digits as its factorization.

13730371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44180.

The product of its (nonzero) digits is 1323, while the sum is 25.

The square root of 13730371 is about 3705.4515244434. The cubic root of 13730371 is about 239.4569376163.

The spelling of 13730371 in words is "thirteen million, seven hundred thirty thousand, three hundred seventy-one".

Divisors: 1 313 43867 13730371