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123060220 = 22522732707
BaseRepresentation
bin1110101010110…
…11111111111100
322120120002212221
413111123333330
5223000411340
620113335124
73022665103
oct725337774
9276502787
10123060220
1163511a68
12352674a4
131c658aca
14124b503a
15ac0c44a
hex755bffc

123060220 has 24 divisors (see below), whose sum is σ = 258635664. Its totient is φ = 49184256.

The previous prime is 123060181. The next prime is 123060227. The reversal of 123060220 is 22060321.

It is a junction number, because it is equal to n+sod(n) for n = 123060194 and 123060203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123060227) 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, 44107 + ... + 46813.

It is an arithmetic number, because the mean of its divisors is an integer number (10776486).

Almost surely, 2123060220 is an apocalyptic number.

123060220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123060220 is an abundant number, since it is smaller than the sum of its proper divisors (135575444).

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

123060220 is a wasteful number, since it uses less digits than its factorization.

123060220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4989 (or 4987 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 123060220 is about 11093.2511014580. The cubic root of 123060220 is about 497.4001314650.

The spelling of 123060220 in words is "one hundred twenty-three million, sixty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 2273 2707 4546 5414 9092 10828 11365 13535 22730 27070 45460 54140 6153011 12306022 24612044 30765055 61530110 123060220