Search a number
-
+
230129992 = 2367429347
BaseRepresentation
bin11011011011110…
…00000101001000
3121001000211000001
431231320011020
5432403124432
634500252344
75463033631
oct1555700510
9531024001
10230129992
111089a2084
12650a10b4
13388a64c1
14227c6888
151530b9e7
hexdb78148

230129992 has 16 divisors (see below), whose sum is σ = 437934960. Its totient is φ = 113347344.

The previous prime is 230129989. The next prime is 230130013. The reversal of 230129992 is 299921032.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214138 + ... + 215209.

It is an arithmetic number, because the mean of its divisors is an integer number (27370935).

Almost surely, 2230129992 is an apocalyptic number.

It is an amenable number.

230129992 is a deficient number, since it is larger than the sum of its proper divisors (207804968).

230129992 is a wasteful number, since it uses less digits than its factorization.

230129992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429420 (or 429416 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 230129992 is about 15170.0359920470. The cubic root of 230129992 is about 612.8079735116.

The spelling of 230129992 in words is "two hundred thirty million, one hundred twenty-nine thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 67 134 268 536 429347 858694 1717388 3434776 28766249 57532498 115064996 230129992