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123681048 = 2336318167
BaseRepresentation
bin1110101111100…
…11100100011000
322121201122111120
413113303210120
5223130243143
620134525240
73031162101
oct727634430
9277648446
10123681048
11638a6447
1235506820
131c81556a
14125d73a8
15acd1383
hex75f3918

123681048 has 32 divisors (see below), whose sum is σ = 309730560. Its totient is φ = 41156640.

The previous prime is 123681043. The next prime is 123681059. The reversal of 123681048 is 840186321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123681043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11061 + ... + 19227.

It is an arithmetic number, because the mean of its divisors is an integer number (9679080).

Almost surely, 2123681048 is an apocalyptic number.

It is an amenable number.

123681048 is an abundant number, since it is smaller than the sum of its proper divisors (186049512).

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

123681048 is a wasteful number, since it uses less digits than its factorization.

123681048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8807 (or 8803 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 123681048 is about 11121.1981368915. The cubic root of 123681048 is about 498.2351754509.

The spelling of 123681048 in words is "one hundred twenty-three million, six hundred eighty-one thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 24 631 1262 1893 2524 3786 5048 7572 8167 15144 16334 24501 32668 49002 65336 98004 196008 5153377 10306754 15460131 20613508 30920262 41227016 61840524 123681048