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123479052 = 22312781023
BaseRepresentation
bin1110101110000…
…10010000001100
322121100101102020
413113002100030
5223102312202
620130330140
73026361144
oct727022014
9277311366
10123479052
1163778704
1235429950
131c774638
1412583924
15ac915bc
hex75c240c

123479052 has 24 divisors (see below), whose sum is σ = 290390016. Its totient is φ = 40835088.

The previous prime is 123479023. The next prime is 123479053. The reversal of 123479052 is 250974321.

It is not an unprimeable number, because it can be changed into a prime (123479053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38988 + ... + 42035.

It is an arithmetic number, because the mean of its divisors is an integer number (12099584).

Almost surely, 2123479052 is an apocalyptic number.

123479052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123479052 is an abundant number, since it is smaller than the sum of its proper divisors (166910964).

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

123479052 is a wasteful number, since it uses less digits than its factorization.

123479052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81157 (or 81155 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 123479052 is about 11112.1128503989. The cubic root of 123479052 is about 497.9637882736.

The spelling of 123479052 in words is "one hundred twenty-three million, four hundred seventy-nine thousand, fifty-two".

Divisors: 1 2 3 4 6 12 127 254 381 508 762 1524 81023 162046 243069 324092 486138 972276 10289921 20579842 30869763 41159684 61739526 123479052