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123092142 = 2320515357
BaseRepresentation
bin1110101011000…
…11110010101110
322120121201200020
413111203302232
5223002422032
620114143010
73023160135
oct725436256
9276551606
10123092142
1163533a48
1235281a66
131c66a4b4
14124c291c
15ac16b2c
hex7563cae

123092142 has 8 divisors (see below), whose sum is σ = 246184296. Its totient is φ = 41030712.

The previous prime is 123092141. The next prime is 123092147. The reversal of 123092142 is 241290321.

It is a sphenic number, since it is the product of 3 distinct primes.

123092142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123092141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10257673 + ... + 10257684.

It is an arithmetic number, because the mean of its divisors is an integer number (30773037).

Almost surely, 2123092142 is an apocalyptic number.

123092142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

123092142 is a wasteful number, since it uses less digits than its factorization.

123092142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20515362.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 123092142 is about 11094.6898108960. The cubic root of 123092142 is about 497.4431365191.

The spelling of 123092142 in words is "one hundred twenty-three million, ninety-two thousand, one hundred forty-two".

Divisors: 1 2 3 6 20515357 41030714 61546071 123092142