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230260780 = 22511513039
BaseRepresentation
bin11011011100110…
…00000000101100
3121001021110102001
431232120000230
5432421321110
634503142044
75464120141
oct1556300054
9531243361
10230260780
11108a81372
1265144924
1338920ba9
142281c3c8
151533563a
hexdb9802c

230260780 has 12 divisors (see below), whose sum is σ = 483547680. Its totient is φ = 92104304.

The previous prime is 230260759. The next prime is 230260781. The reversal of 230260780 is 87062032.

It is not an unprimeable number, because it can be changed into a prime (230260781) 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, 5756500 + ... + 5756539.

It is an arithmetic number, because the mean of its divisors is an integer number (40295640).

Almost surely, 2230260780 is an apocalyptic number.

230260780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230260780 is an abundant number, since it is smaller than the sum of its proper divisors (253286900).

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

230260780 is a wasteful number, since it uses less digits than its factorization.

230260780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11513048 (or 11513046 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 230260780 is about 15174.3461144130. The cubic root of 230260780 is about 612.9240423329.

The spelling of 230260780 in words is "two hundred thirty million, two hundred sixty thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 11513039 23026078 46052156 57565195 115130390 230260780