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230069748 = 22319172479
BaseRepresentation
bin11011011011010…
…01010111110100
3121000220202100210
431231221113310
5432344212443
634455105420
75462363166
oct1555512764
9530822323
10230069748
11108960897
1265072270
1338884c5c
14227ac936
15152e8c33
hexdb695f4

230069748 has 12 divisors (see below), whose sum is σ = 536829440. Its totient is φ = 76689912.

The previous prime is 230069729. The next prime is 230069783. The reversal of 230069748 is 847960032.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9586228 + ... + 9586251.

Almost surely, 2230069748 is an apocalyptic number.

It is an amenable number.

230069748 is an abundant number, since it is smaller than the sum of its proper divisors (306759692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230069748 is a wasteful number, since it uses less digits than its factorization.

230069748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19172486 (or 19172484 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 230069748 is about 15168.0502372586. The cubic root of 230069748 is about 612.7544947144.

The spelling of 230069748 in words is "two hundred thirty million, sixty-nine thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 12 19172479 38344958 57517437 76689916 115034874 230069748