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13931334 = 2327997101
BaseRepresentation
bin110101001001…
…001101000110
3222012210012100
4311021031012
512031300314
61214332530
7226262064
oct65111506
928183170
1013931334
1179558aa
1247ba146
132b6a0c1
141bc9034
151352c09
hexd49346

13931334 has 48 divisors (see below), whose sum is σ = 31187520. Its totient is φ = 4492800.

The previous prime is 13931329. The next prime is 13931341. The reversal of 13931334 is 43313931.

It is a junction number, because it is equal to n+sod(n) for n = 13931298 and 13931307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137884 + ... + 137984.

It is an arithmetic number, because the mean of its divisors is an integer number (649740).

Almost surely, 213931334 is an apocalyptic number.

13931334 is an abundant number, since it is smaller than the sum of its proper divisors (17256186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13931334 is a wasteful number, since it uses less digits than its factorization.

13931334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 282 counting only the distinct ones).

The product of its digits is 2916, while the sum is 27.

The square root of 13931334 is about 3732.4702276107. The cubic root of 13931334 is about 240.6195451397.

The spelling of 13931334 in words is "thirteen million, nine hundred thirty-one thousand, three hundred thirty-four".

Divisors: 1 2 3 6 9 18 79 97 101 158 194 202 237 291 303 474 582 606 711 873 909 1422 1746 1818 7663 7979 9797 15326 15958 19594 22989 23937 29391 45978 47874 58782 68967 71811 88173 137934 143622 176346 773963 1547926 2321889 4643778 6965667 13931334