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13914745 = 513192593
BaseRepresentation
bin110101000101…
…001001111001
3222011221102221
4311011021321
512030232440
61214124041
7226162525
oct65051171
928157387
1013914745
117944399
1247b0621
132b626a0
141bc2d85
15134cd4a
hexd45279

13914745 has 24 divisors (see below), whose sum is σ = 19010376. Its totient is φ = 9718272.

The previous prime is 13914743. The next prime is 13914763. The reversal of 13914745 is 54741931.

13914745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 467856 + 13446889 = 684^2 + 3667^2 .

It is not a de Polignac number, because 13914745 - 21 = 13914743 is a prime.

It is a Duffinian number.

Its product of digits (15120) is a multiple of the sum of its prime divisors (630).

It is a self number, because there is not a number n which added to its sum of digits gives 13914745.

It is not an unprimeable number, because it can be changed into a prime (13914743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23169 + ... + 23761.

It is an arithmetic number, because the mean of its divisors is an integer number (792099).

Almost surely, 213914745 is an apocalyptic number.

It is an amenable number.

13914745 is a deficient number, since it is larger than the sum of its proper divisors (5095631).

13914745 is a wasteful number, since it uses less digits than its factorization.

13914745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649 (or 630 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 13914745 is about 3730.2473108361. The cubic root of 13914745 is about 240.5239997776.

It can be divided in two parts, 139 and 14745, that added together give a square (14884 = 1222).

The spelling of 13914745 in words is "thirteen million, nine hundred fourteen thousand, seven hundred forty-five".

Divisors: 1 5 13 19 65 95 247 361 593 1235 1805 2965 4693 7709 11267 23465 38545 56335 146471 214073 732355 1070365 2782949 13914745