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230604649 = 1120964059
BaseRepresentation
bin11011011111010…
…11111101101001
3121001220221002221
431233223331221
5433013322044
634514354041
75500051522
oct1557537551
9531827087
10230604649
11109196760
126528b921
1338a11572
14228ab849
15153a2484
hexdbebf69

230604649 has 4 divisors (see below), whose sum is σ = 251568720. Its totient is φ = 209640580.

The previous prime is 230604593. The next prime is 230604659. The reversal of 230604649 is 946406032.

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 230604649 - 227 = 96386921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230604659) 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, 10482019 + ... + 10482040.

It is an arithmetic number, because the mean of its divisors is an integer number (62892180).

Almost surely, 2230604649 is an apocalyptic number.

It is an amenable number.

230604649 is a deficient number, since it is larger than the sum of its proper divisors (20964071).

230604649 is a wasteful number, since it uses less digits than its factorization.

230604649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20964070.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 230604649 is about 15185.6724908711. The cubic root of 230604649 is about 613.2290019909.

The spelling of 230604649 in words is "two hundred thirty million, six hundred four thousand, six hundred forty-nine".

Divisors: 1 11 20964059 230604649