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120231132 = 22371431323
BaseRepresentation
bin1110010101010…
…01010011011100
322101020101002220
413022221103130
5221234344012
615532545340
72656643040
oct712512334
9271211086
10120231132
116195a47a
1234322250
131bba81a8
1411d7a020
15a84e08c
hex72a94dc

120231132 has 24 divisors (see below), whose sum is σ = 320616576. Its totient is φ = 34351728.

The previous prime is 120231121. The next prime is 120231169. The reversal of 120231132 is 231132021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715578 + ... + 715745.

It is an arithmetic number, because the mean of its divisors is an integer number (13359024).

Almost surely, 2120231132 is an apocalyptic number.

120231132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120231132 is an abundant number, since it is smaller than the sum of its proper divisors (200385444).

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

120231132 is a wasteful number, since it uses less digits than its factorization.

120231132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431337 (or 1431335 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 120231132 is about 10964.9957592331. The cubic root of 120231132 is about 493.5588898373.

Adding to 120231132 its reverse (231132021), we get a palindrome (351363153).

The spelling of 120231132 in words is "one hundred twenty million, two hundred thirty-one thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 1431323 2862646 4293969 5725292 8587938 10019261 17175876 20038522 30057783 40077044 60115566 120231132