Search a number
-
+
245714305 = 549142861
BaseRepresentation
bin11101010010101…
…00110110000001
3122010100120122211
432221110312001
51000400324210
640214302121
76042352144
oct1651246601
9563316584
10245714305
11116776881
126a357941
133bba1aa5
14248c205b
151688938a
hexea54d81

245714305 has 4 divisors (see below), whose sum is σ = 294857172. Its totient is φ = 196571440.

The previous prime is 245714269. The next prime is 245714321. The reversal of 245714305 is 503417542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 159744321 + 85969984 = 12639^2 + 9272^2 .

It is not a de Polignac number, because 245714305 - 27 = 245714177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24571426 + ... + 24571435.

It is an arithmetic number, because the mean of its divisors is an integer number (73714293).

Almost surely, 2245714305 is an apocalyptic number.

It is an amenable number.

245714305 is a deficient number, since it is larger than the sum of its proper divisors (49142867).

245714305 is an equidigital number, since it uses as much as digits as its factorization.

245714305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49142866.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 245714305 is about 15675.2768715580. The cubic root of 245714305 is about 626.3399985928.

The spelling of 245714305 in words is "two hundred forty-five million, seven hundred fourteen thousand, three hundred five".

Divisors: 1 5 49142861 245714305