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13928334 = 237401827
BaseRepresentation
bin110101001000…
…011110001110
3222012122002020
4311020132032
512031201314
61214311010
7226250250
oct65103616
928178066
1013928334
117953622
1247b8466
132b68924
141bc7cd0
151351da9
hexd4878e

13928334 has 32 divisors (see below), whose sum is σ = 31954176. Its totient is φ = 3964800.

The previous prime is 13928333. The next prime is 13928339. The reversal of 13928334 is 43382931.

It is a happy number.

13928334 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13928295 and 13928304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13928333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16429 + ... + 17255.

It is an arithmetic number, because the mean of its divisors is an integer number (998568).

Almost surely, 213928334 is an apocalyptic number.

13928334 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13928334 is an abundant number, since it is smaller than the sum of its proper divisors (18025842).

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

13928334 is a wasteful number, since it uses less digits than its factorization.

13928334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240.

The product of its digits is 15552, while the sum is 33.

The square root of 13928334 is about 3732.0683273488. The cubic root of 13928334 is about 240.6022720761.

The spelling of 13928334 in words is "thirteen million, nine hundred twenty-eight thousand, three hundred thirty-four".

Divisors: 1 2 3 6 7 14 21 42 401 802 827 1203 1654 2406 2481 2807 4962 5614 5789 8421 11578 16842 17367 34734 331627 663254 994881 1989762 2321389 4642778 6964167 13928334