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123230244 = 22310269187
BaseRepresentation
bin1110101100001…
…01100000100100
322120212202010010
413112011200210
5223021331434
620121130220
73024303564
oct726054044
9276782103
10123230244
1163618785
1235329970
131c6b8307
141251ada4
15ac429e9
hex7585824

123230244 has 12 divisors (see below), whose sum is σ = 287537264. Its totient is φ = 41076744.

The previous prime is 123230243. The next prime is 123230249. The reversal of 123230244 is 442032321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 123230244.

It is not an unprimeable number, because it can be changed into a prime (123230243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5134582 + ... + 5134605.

Almost surely, 2123230244 is an apocalyptic number.

It is an amenable number.

123230244 is an abundant number, since it is smaller than the sum of its proper divisors (164307020).

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

123230244 is a wasteful number, since it uses less digits than its factorization.

123230244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10269194 (or 10269192 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 123230244 is about 11100.9118544379. The cubic root of 123230244 is about 497.6291007767.

Adding to 123230244 its reverse (442032321), we get a palindrome (565262565).

The spelling of 123230244 in words is "one hundred twenty-three million, two hundred thirty thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 10269187 20538374 30807561 41076748 61615122 123230244