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230283788 = 2278224421
BaseRepresentation
bin11011011100111…
…01101000001100
3121001022121222012
431232131220030
5432423040123
634503440352
75464244210
oct1556355014
9531277865
10230283788
11108a97689
12651560b8
133892b4c7
1422826940
151533c378
hexdb9da0c

230283788 has 12 divisors (see below), whose sum is σ = 460567632. Its totient is φ = 98693040.

The previous prime is 230283787. The next prime is 230283817. The reversal of 230283788 is 887382032.

230283788 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (230283787) 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, 4112183 + ... + 4112238.

It is an arithmetic number, because the mean of its divisors is an integer number (38380636).

Almost surely, 2230283788 is an apocalyptic number.

230283788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

230283788 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

230283788 is a wasteful number, since it uses less digits than its factorization.

230283788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8224432 (or 8224430 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 230283788 is about 15175.1042171051. The cubic root of 230283788 is about 612.9444564140.

The spelling of 230283788 in words is "two hundred thirty million, two hundred eighty-three thousand, seven hundred eighty-eight".

Divisors: 1 2 4 7 14 28 8224421 16448842 32897684 57570947 115141894 230283788