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230297772 = 22373262897
BaseRepresentation
bin11011011101000…
…01000010101100
3121001100100011010
431232201002230
5432424012042
634504025220
75464333035
oct1556410254
9531310133
10230297772
11108aa7141
1265162210
1338934993
142282ba8c
151534159c
hexdba10ac

230297772 has 24 divisors (see below), whose sum is σ = 544724656. Its totient is φ = 75714048.

The previous prime is 230297747. The next prime is 230297789. The reversal of 230297772 is 277792032.

It is a self number, because there is not a number n which added to its sum of digits gives 230297772.

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 7 ways as a sum of consecutive naturals, for example, 130573 + ... + 132324.

Almost surely, 2230297772 is an apocalyptic number.

It is an amenable number.

230297772 is an abundant number, since it is smaller than the sum of its proper divisors (314426884).

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

230297772 is a wasteful number, since it uses less digits than its factorization.

230297772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262977 (or 262975 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 39.

The square root of 230297772 is about 15175.5649647715. The cubic root of 230297772 is about 612.9568631953.

The spelling of 230297772 in words is "two hundred thirty million, two hundred ninety-seven thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 12 73 146 219 292 438 876 262897 525794 788691 1051588 1577382 3154764 19191481 38382962 57574443 76765924 115148886 230297772