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14660109 = 3429792
BaseRepresentation
bin110111111011…
…001000001101
31000120210220000
4313323020031
512223110414
61242114513
7235415562
oct67731015
930523800
1014660109
1183033a2
124aaba39
133063a29
141d38869
151448b09
hexdfb20d

14660109 has 30 divisors (see below), whose sum is σ = 22945230. Its totient is φ = 9316944.

The previous prime is 14660089. The next prime is 14660123. The reversal of 14660109 is 90106641.

It can be written as a sum of positive squares in only one way, i.e., 12638025 + 2022084 = 3555^2 + 1422^2 .

It is not a de Polignac number, because 14660109 - 217 = 14529037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14660209) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 185532 + ... + 185610.

It is an arithmetic number, because the mean of its divisors is an integer number (764841).

Almost surely, 214660109 is an apocalyptic number.

It is an amenable number.

14660109 is a deficient number, since it is larger than the sum of its proper divisors (8285121).

14660109 is an frugal number, since it uses more digits than its factorization.

14660109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 14660109 is about 3828.8521778726. The cubic root of 14660109 is about 244.7441950362.

The spelling of 14660109 in words is "fourteen million, six hundred sixty thousand, one hundred nine".

Divisors: 1 3 9 27 29 79 81 87 237 261 711 783 2133 2291 2349 6241 6399 6873 18723 20619 56169 61857 168507 180989 185571 505521 542967 1628901 4886703 14660109