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120056431 = 1117642013
BaseRepresentation
bin1110010011111…
…10101001101111
322100220111110111
413021332221233
5221213301211
615525120451
72655314515
oct711765157
9270814414
10120056431
11618501a0
1234259127
131bb46811
1411d324b5
15a817421
hex727ea6f

120056431 has 8 divisors (see below), whose sum is σ = 138675024. Its totient is φ = 102721920.

The previous prime is 120056423. The next prime is 120056449. The reversal of 120056431 is 134650021.

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

It is a cyclic number.

It is not a de Polignac number, because 120056431 - 23 = 120056423 is a prime.

It is a super-2 number, since 2×1200564312 = 28827093248915522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120056411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320820 + ... + 321193.

It is an arithmetic number, because the mean of its divisors is an integer number (17334378).

Almost surely, 2120056431 is an apocalyptic number.

120056431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120056431 is a deficient number, since it is larger than the sum of its proper divisors (18618593).

120056431 is a wasteful number, since it uses less digits than its factorization.

120056431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642041.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 120056431 is about 10957.0265583323. The cubic root of 120056431 is about 493.3197198682.

The spelling of 120056431 in words is "one hundred twenty million, fifty-six thousand, four hundred thirty-one".

Divisors: 1 11 17 187 642013 7062143 10914221 120056431