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123675668 = 2235387589
BaseRepresentation
bin1110101111100…
…10010000010100
322121201101010022
413113302100110
5223130110133
620134444312
73031140314
oct727622024
9277641108
10123675668
11638a23a6
1235503698
131c812c8c
14125d5444
15acce998
hex75f2414

123675668 has 12 divisors (see below), whose sum is σ = 217048020. Its totient is φ = 61661952.

The previous prime is 123675637. The next prime is 123675707. The reversal of 123675668 is 866576321.

It can be written as a sum of positive squares in 2 ways, for example, as 41628304 + 82047364 = 6452^2 + 9058^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 42383 + ... + 45206.

It is an arithmetic number, because the mean of its divisors is an integer number (18087335).

Almost surely, 2123675668 is an apocalyptic number.

It is an amenable number.

123675668 is a deficient number, since it is larger than the sum of its proper divisors (93372352).

123675668 is a wasteful number, since it uses less digits than its factorization.

123675668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87946 (or 87944 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 123675668 is about 11120.9562538480. The cubic root of 123675668 is about 498.2279511048.

The spelling of 123675668 in words is "one hundred twenty-three million, six hundred seventy-five thousand, six hundred sixty-eight".

Divisors: 1 2 4 353 706 1412 87589 175178 350356 30918917 61837834 123675668