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120102042 = 2317269263
BaseRepresentation
bin1110010100010…
…01110010011010
322100222211000210
413022021302122
5221221231132
615530111550
72655564504
oct712116232
9270884023
10120102042
1161881495
123427b5b6
131bb614c8
1411d44d74
15a825bcc
hex7289c9a

120102042 has 24 divisors (see below), whose sum is σ = 255168576. Its totient is φ = 37678528.

The previous prime is 120102013. The next prime is 120102077. The reversal of 120102042 is 240201021.

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 11 ways as a sum of consecutive naturals, for example, 32898 + ... + 36365.

It is an arithmetic number, because the mean of its divisors is an integer number (10632024).

Almost surely, 2120102042 is an apocalyptic number.

120102042 is an abundant number, since it is smaller than the sum of its proper divisors (135066534).

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

120102042 is a wasteful number, since it uses less digits than its factorization.

120102042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69302 (or 69285 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 120102042 is about 10959.1077191531. The cubic root of 120102042 is about 493.3821848183.

Adding to 120102042 its reverse (240201021), we get a palindrome (360303063).

The spelling of 120102042 in words is "one hundred twenty million, one hundred two thousand, forty-two".

Divisors: 1 2 3 6 17 34 51 102 289 578 867 1734 69263 138526 207789 415578 1177471 2354942 3532413 7064826 20017007 40034014 60051021 120102042