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14779145 = 52955829
BaseRepresentation
bin111000011000…
…001100001001
31000210212011202
4320120030021
512240413040
61244433545
7236422613
oct70301411
930725152
1014779145
118384877
124b488b5
1330a5c74
141d69db3
15146e015
hexe18309

14779145 has 4 divisors (see below), whose sum is σ = 17734980. Its totient is φ = 11823312.

The previous prime is 14779139. The next prime is 14779151. The reversal of 14779145 is 54197741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54197741 = 134169057.

It is an interprime number because it is at equal distance from previous prime (14779139) and next prime (14779151).

It can be written as a sum of positive squares in 2 ways, for example, as 5125696 + 9653449 = 2264^2 + 3107^2 .

It is a cyclic number.

It is not a de Polignac number, because 14779145 - 212 = 14775049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14779099 and 14779108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1477910 + ... + 1477919.

It is an arithmetic number, because the mean of its divisors is an integer number (4433745).

Almost surely, 214779145 is an apocalyptic number.

It is an amenable number.

14779145 is a deficient number, since it is larger than the sum of its proper divisors (2955835).

14779145 is an equidigital number, since it uses as much as digits as its factorization.

14779145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955834.

The product of its digits is 35280, while the sum is 38.

The square root of 14779145 is about 3844.3653572469. The cubic root of 14779145 is about 245.4048284182.

The spelling of 14779145 in words is "fourteen million, seven hundred seventy-nine thousand, one hundred forty-five".

Divisors: 1 5 2955829 14779145