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13922972 = 2271926171
BaseRepresentation
bin110101000111…
…001010011100
3222012100201122
4311013022130
512031013342
61214230112
7226225520
oct65071234
928170648
1013922972
11794a598
1247b5338
132b6635b
141bc5d80
1513504d2
hexd4729c

13922972 has 24 divisors (see below), whose sum is σ = 29312640. Its totient is φ = 5652720.

The previous prime is 13922969. The next prime is 13922977. The reversal of 13922972 is 27922931.

13922972 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

13922972 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13922977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12554 + ... + 13617.

It is an arithmetic number, because the mean of its divisors is an integer number (1221360).

Almost surely, 213922972 is an apocalyptic number.

It is an amenable number.

13922972 is an abundant number, since it is smaller than the sum of its proper divisors (15389668).

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

13922972 is a wasteful number, since it uses less digits than its factorization.

13922972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26201 (or 26199 counting only the distinct ones).

The product of its digits is 13608, while the sum is 35.

The square root of 13922972 is about 3731.3498897852. The cubic root of 13922972 is about 240.5713931744.

The spelling of 13922972 in words is "thirteen million, nine hundred twenty-two thousand, nine hundred seventy-two".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 26171 52342 104684 183197 366394 497249 732788 994498 1988996 3480743 6961486 13922972