Search a number
-
+
245465953 = 269990947
BaseRepresentation
bin11101010000110…
…00001101100001
3122002212221222121
432220120031201
51000314402303
640205104241
76040266115
oct1650301541
9562787877
10245465953
11116617227
126a258081
133bb15a35
1424859745
151683a9bd
hexea18361

245465953 has 4 divisors (see below), whose sum is σ = 245559600. Its totient is φ = 245372308.

The previous prime is 245465951. The next prime is 245465989. The reversal of 245465953 is 359564542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 245465953 - 21 = 245465951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245465951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42775 + ... + 48172.

It is an arithmetic number, because the mean of its divisors is an integer number (61389900).

Almost surely, 2245465953 is an apocalyptic number.

It is an amenable number.

245465953 is a deficient number, since it is larger than the sum of its proper divisors (93647).

245465953 is an equidigital number, since it uses as much as digits as its factorization.

245465953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93646.

The product of its digits is 648000, while the sum is 43.

The square root of 245465953 is about 15667.3530948913. The cubic root of 245465953 is about 626.1289062454.

The spelling of 245465953 in words is "two hundred forty-five million, four hundred sixty-five thousand, nine hundred fifty-three".

Divisors: 1 2699 90947 245465953