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123538068 = 22334572503
BaseRepresentation
bin1110101110100…
…00101010010100
322121110101101000
413113100222110
5223111204233
620131503300
73030025203
oct727205224
9277411330
10123538068
1163808a85
1235457b30
131c795464
141259b23a
15aca3d13
hex75d0a94

123538068 has 48 divisors (see below), whose sum is σ = 321112960. Its totient is φ = 41072832.

The previous prime is 123538039. The next prime is 123538073. The reversal of 123538068 is 860835321.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 15 ways as a sum of consecutive naturals, for example, 48105 + ... + 50607.

Almost surely, 2123538068 is an apocalyptic number.

123538068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

123538068 is an abundant number, since it is smaller than the sum of its proper divisors (197574892).

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

123538068 is a wasteful number, since it uses less digits than its factorization.

123538068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973 (or 2965 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 123538068 is about 11114.7680137734. The cubic root of 123538068 is about 498.0431084762.

The spelling of 123538068 in words is "one hundred twenty-three million, five hundred thirty-eight thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 457 914 1371 1828 2503 2742 4113 5006 5484 7509 8226 10012 12339 15018 16452 22527 24678 30036 45054 49356 67581 90108 135162 270324 1143871 2287742 3431613 4575484 6863226 10294839 13726452 20589678 30884517 41179356 61769034 123538068