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123486368 = 2517435279
BaseRepresentation
bin1110101110001…
…00000010100000
322121100202110012
413113010002200
5223103030433
620130424052
73026421365
oct727040240
9277322405
10123486368
1163783155
1235432028
131c777a75
141258646c
15ac93848
hex75c40a0

123486368 has 48 divisors (see below), whose sum is σ = 263450880. Its totient is φ = 56749056.

The previous prime is 123486367. The next prime is 123486373. The reversal of 123486368 is 863684321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123486367) 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, 20753 + ... + 26031.

It is an arithmetic number, because the mean of its divisors is an integer number (5488560).

Almost surely, 2123486368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123486368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131725440).

123486368 is an abundant number, since it is smaller than the sum of its proper divisors (139964512).

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

123486368 is a wasteful number, since it uses less digits than its factorization.

123486368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5349 (or 5341 counting only the distinct ones).

The product of its digits is 165888, while the sum is 41.

The square root of 123486368 is about 11112.4420358443. The cubic root of 123486368 is about 497.9736226842.

The spelling of 123486368 in words is "one hundred twenty-three million, four hundred eighty-six thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 16 17 32 34 43 68 86 136 172 272 344 544 688 731 1376 1462 2924 5279 5848 10558 11696 21116 23392 42232 84464 89743 168928 179486 226997 358972 453994 717944 907988 1435888 1815976 2871776 3631952 3858949 7263904 7717898 15435796 30871592 61743184 123486368