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14657140 = 225769953
BaseRepresentation
bin110111111010…
…011001110100
31000120122211001
4313322121310
512223012030
61242053044
7235404121
oct67723164
930518731
1014657140
118301143
124aaa184
133062584
141d37748
151447cca
hexdfa674

14657140 has 24 divisors (see below), whose sum is σ = 30852360. Its totient is φ = 5849088.

The previous prime is 14657087. The next prime is 14657147. The reversal of 14657140 is 4175641.

It can be written as a sum of positive squares in 4 ways, for example, as 729316 + 13927824 = 854^2 + 3732^2 .

It is a junction number, because it is equal to n+sod(n) for n = 14657099 and 14657108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14657147) 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, 14904 + ... + 15856.

It is an arithmetic number, because the mean of its divisors is an integer number (1285515).

Almost surely, 214657140 is an apocalyptic number.

14657140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14657140 is an abundant number, since it is smaller than the sum of its proper divisors (16195220).

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

14657140 is a wasteful number, since it uses less digits than its factorization.

14657140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731 (or 1729 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 14657140 is about 3828.4644441342. The cubic root of 14657140 is about 244.7276718627.

It can be divided in two parts, 146571 and 40, that added together give a triangular number (146611 = T541).

The spelling of 14657140 in words is "fourteen million, six hundred fifty-seven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 769 953 1538 1906 3076 3812 3845 4765 7690 9530 15380 19060 732857 1465714 2931428 3664285 7328570 14657140