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230007949 = 1072149607
BaseRepresentation
bin11011011010110…
…10010010001101
3121000210121120221
431231122102031
5432340223244
634453511341
75462015053
oct1555322215
9530717527
10230007949
11108919416
1265042551
1338862aa2
14227941d3
15152d5784
hexdb5a48d

230007949 has 4 divisors (see below), whose sum is σ = 232157664. Its totient is φ = 227858236.

The previous prime is 230007929. The next prime is 230007959. The reversal of 230007949 is 949700032.

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 230007949 - 215 = 229975181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230007919) 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, 1074697 + ... + 1074910.

It is an arithmetic number, because the mean of its divisors is an integer number (58039416).

Almost surely, 2230007949 is an apocalyptic number.

It is an amenable number.

230007949 is a deficient number, since it is larger than the sum of its proper divisors (2149715).

230007949 is a wasteful number, since it uses less digits than its factorization.

230007949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149714.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 230007949 is about 15166.0129566079. The cubic root of 230007949 is about 612.6996258375.

The spelling of 230007949 in words is "two hundred thirty million, seven thousand, nine hundred forty-nine".

Divisors: 1 107 2149607 230007949