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123348140 = 2256167407
BaseRepresentation
bin1110101101000…
…10010010101100
322121002201211122
413112202102230
5223034120030
620123440112
73025304366
oct726422254
9277081748
10123348140
1163699313
1235386038
131c729b86
141254bd36
15ac678e5
hex75a24ac

123348140 has 12 divisors (see below), whose sum is σ = 259031136. Its totient is φ = 49339248.

The previous prime is 123348091. The next prime is 123348157. The reversal of 123348140 is 41843321.

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 3 ways as a sum of consecutive naturals, for example, 3083684 + ... + 3083723.

It is an arithmetic number, because the mean of its divisors is an integer number (21585928).

Almost surely, 2123348140 is an apocalyptic number.

123348140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123348140 is an abundant number, since it is smaller than the sum of its proper divisors (135682996).

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

123348140 is a wasteful number, since it uses less digits than its factorization.

123348140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6167416 (or 6167414 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 123348140 is about 11106.2207793650. The cubic root of 123348140 is about 497.7877463030.

The spelling of 123348140 in words is "one hundred twenty-three million, three hundred forty-eight thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 6167407 12334814 24669628 30837035 61674070 123348140