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815234116 = 221711988737
BaseRepresentation
bin110000100101110…
…111110001000100
32002211000011222011
4300211313301010
53132144442431
6212521144004
726126242564
oct6045676104
92084004864
10815234116
113891a6504
121a902b004
13ccb87c68
147a3b2da4
154b885cb1
hex30977c44

815234116 has 12 divisors (see below), whose sum is σ = 1510580988. Its totient is φ = 383639552.

The previous prime is 815234111. The next prime is 815234131. The reversal of 815234116 is 611432518.

It can be written as a sum of positive squares in 2 ways, for example, as 648720900 + 166513216 = 25470^2 + 12904^2 .

It is not an unprimeable number, because it can be changed into a prime (815234111) 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, 5994301 + ... + 5994436.

It is an arithmetic number, because the mean of its divisors is an integer number (125881749).

Almost surely, 2815234116 is an apocalyptic number.

It is an amenable number.

815234116 is a deficient number, since it is larger than the sum of its proper divisors (695346872).

815234116 is a wasteful number, since it uses less digits than its factorization.

815234116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11988758 (or 11988756 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 815234116 is about 28552.3049157156. The cubic root of 815234116 is about 934.1732961644.

The spelling of 815234116 in words is "eight hundred fifteen million, two hundred thirty-four thousand, one hundred sixteen".

Divisors: 1 2 4 17 34 68 11988737 23977474 47954948 203808529 407617058 815234116