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13922317 = 31449107
BaseRepresentation
bin110101000111…
…000000001101
3222012022211101
4311013000031
512031003232
61214223101
7226223563
oct65070015
928168741
1013922317
11794a052
1247b4a91
132b65c76
141bc5a33
1513501e7
hexd4700d

13922317 has 4 divisors (see below), whose sum is σ = 14371456. Its totient is φ = 13473180.

The previous prime is 13922309. The next prime is 13922327. The reversal of 13922317 is 71322931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13922317 - 23 = 13922309 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 (13922327) 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, 224523 + ... + 224584.

It is an arithmetic number, because the mean of its divisors is an integer number (3592864).

Almost surely, 213922317 is an apocalyptic number.

It is an amenable number.

13922317 is a deficient number, since it is larger than the sum of its proper divisors (449139).

13922317 is an equidigital number, since it uses as much as digits as its factorization.

13922317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449138.

The product of its digits is 2268, while the sum is 28.

The square root of 13922317 is about 3731.2621189083. The cubic root of 13922317 is about 240.5676205906.

The spelling of 13922317 in words is "thirteen million, nine hundred twenty-two thousand, three hundred seventeen".

Divisors: 1 31 449107 13922317