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13950239 = 31374447
BaseRepresentation
bin110101001101…
…110100011111
3222020202010112
4311031310133
512032401424
61215000235
7226401152
oct65156437
928222115
1013950239
117969026
12480907b
132b758a4
141bd1c99
15135860e
hexd4dd1f

13950239 has 4 divisors (see below), whose sum is σ = 13957824. Its totient is φ = 13942656.

The previous prime is 13950229. The next prime is 13950241. The reversal of 13950239 is 93205931.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13950239 - 212 = 13946143 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 (13950229) 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, 914 + ... + 5360.

It is an arithmetic number, because the mean of its divisors is an integer number (3489456).

Almost surely, 213950239 is an apocalyptic number.

13950239 is a deficient number, since it is larger than the sum of its proper divisors (7585).

13950239 is an equidigital number, since it uses as much as digits as its factorization.

13950239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7584.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 13950239 is about 3735.0018741628. The cubic root of 13950239 is about 240.7283372197.

The spelling of 13950239 in words is "thirteen million, nine hundred fifty thousand, two hundred thirty-nine".

Divisors: 1 3137 4447 13950239