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123081244 = 2211131072011
BaseRepresentation
bin1110101011000…
…01001000011100
322120121011201121
413111201020130
5223002044434
620114020324
73023113306
oct725411034
9276534647
10123081244
1163526840
12352776a4
131c665550
14124bc976
15ac137b4
hex756121c

123081244 has 48 divisors (see below), whose sum is σ = 255540096. Its totient is φ = 51134400.

The previous prime is 123081239. The next prime is 123081271. The reversal of 123081244 is 442180321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60199 + ... + 62209.

It is an arithmetic number, because the mean of its divisors is an integer number (5323752).

Almost surely, 2123081244 is an apocalyptic number.

It is an amenable number.

123081244 is an abundant number, since it is smaller than the sum of its proper divisors (132458852).

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

123081244 is a wasteful number, since it uses less digits than its factorization.

123081244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146 (or 2144 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 123081244 is about 11094.1986641668. The cubic root of 123081244 is about 497.4284556597.

The spelling of 123081244 in words is "one hundred twenty-three million, eighty-one thousand, two hundred forty-four".

Divisors: 1 2 4 11 13 22 26 44 52 107 143 214 286 428 572 1177 1391 2011 2354 2782 4022 4708 5564 8044 15301 22121 26143 30602 44242 52286 61204 88484 104572 215177 287573 430354 575146 860708 1150292 2366947 2797301 4733894 5594602 9467788 11189204 30770311 61540622 123081244