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230703649 = 1120973059
BaseRepresentation
bin11011100000001…
…00001000100001
3121002002221220121
431300010020201
5433030004044
634520440241
75500643251
oct1560041041
9532087817
10230703649
11109254080
1265319081
1338a47647
14228d5961
15153c1984
hexdc04221

230703649 has 4 divisors (see below), whose sum is σ = 251676720. Its totient is φ = 209730580.

The previous prime is 230703619. The next prime is 230703661. The reversal of 230703649 is 946307032.

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 230703649 - 27 = 230703521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230703619) 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, 10486519 + ... + 10486540.

It is an arithmetic number, because the mean of its divisors is an integer number (62919180).

Almost surely, 2230703649 is an apocalyptic number.

It is an amenable number.

230703649 is a deficient number, since it is larger than the sum of its proper divisors (20973071).

230703649 is a wasteful number, since it uses less digits than its factorization.

230703649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20973070.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 230703649 is about 15188.9317925916. The cubic root of 230703649 is about 613.3167437686.

The spelling of 230703649 in words is "two hundred thirty million, seven hundred three thousand, six hundred forty-nine".

Divisors: 1 11 20973059 230703649