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13919252 = 223794049
BaseRepresentation
bin110101000110…
…010000010100
3222012011121212
4311012100110
512030404002
61214200552
7226211624
oct65062024
928164555
1013919252
117947816
1247b3158
132b64759
141bc4884
15134e352
hexd46414

13919252 has 12 divisors (see below), whose sum is σ = 25017300. Its totient is φ = 6771456.

The previous prime is 13919251. The next prime is 13919263. The reversal of 13919252 is 25291931.

It can be written as a sum of positive squares in 2 ways, for example, as 12931216 + 988036 = 3596^2 + 994^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13919251) 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, 46877 + ... + 47172.

It is an arithmetic number, because the mean of its divisors is an integer number (2084775).

Almost surely, 213919252 is an apocalyptic number.

It is an amenable number.

13919252 is a deficient number, since it is larger than the sum of its proper divisors (11098048).

13919252 is a wasteful number, since it uses less digits than its factorization.

13919252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94090 (or 94088 counting only the distinct ones).

The product of its digits is 4860, while the sum is 32.

The square root of 13919252 is about 3730.8513773668. The cubic root of 13919252 is about 240.5499656301.

It can be divided in two parts, 139 and 19252, that added together give a palindrome (19391).

The spelling of 13919252 in words is "thirteen million, nine hundred nineteen thousand, two hundred fifty-two".

Divisors: 1 2 4 37 74 148 94049 188098 376196 3479813 6959626 13919252