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120731412 = 22352319237
BaseRepresentation
bin1110011001000…
…11011100010100
322102011210100210
413030203130110
5221401401122
615551405420
72664125424
oct714433424
9272153323
10120731412
116217132a
1234523870
131c021b09
141206a484
15a8ec40c
hex7323714

120731412 has 24 divisors (see below), whose sum is σ = 282259936. Its totient is φ = 40164768.

The previous prime is 120731389. The next prime is 120731419. The reversal of 120731412 is 214137021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120731419) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3343 + ... + 15894.

Almost surely, 2120731412 is an apocalyptic number.

120731412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120731412 is an abundant number, since it is smaller than the sum of its proper divisors (161528524).

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

120731412 is a wasteful number, since it uses less digits than its factorization.

120731412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19767 (or 19765 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 120731412 is about 10987.7846720802. The cubic root of 120731412 is about 494.2425063383.

Adding to 120731412 its reverse (214137021), we get a palindrome (334868433).

The spelling of 120731412 in words is "one hundred twenty million, seven hundred thirty-one thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 523 1046 1569 2092 3138 6276 19237 38474 57711 76948 115422 230844 10060951 20121902 30182853 40243804 60365706 120731412