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120116731 = 790718919
BaseRepresentation
bin1110010100011…
…01010111111011
322101000120011211
413022031113323
5221222213411
615530303551
72655655360
oct712152773
9271016154
10120116731
1161891529
1234287bb7
131bb680b7
1411d4a467
15a82a221
hex728d5fb

120116731 has 8 divisors (see below), whose sum is σ = 137434880. Its totient is φ = 102838248.

The previous prime is 120116719. The next prime is 120116771. The reversal of 120116731 is 137611021.

120116731 is nontrivially palindromic in base 6.

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 120116731 - 25 = 120116699 is a prime.

It is a super-2 number, since 2×1201167312 = 28856058132252722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120116771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3111 + ... + 15808.

It is an arithmetic number, because the mean of its divisors is an integer number (17179360).

Almost surely, 2120116731 is an apocalyptic number.

120116731 is a deficient number, since it is larger than the sum of its proper divisors (17318149).

120116731 is an equidigital number, since it uses as much as digits as its factorization.

120116731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19833.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 120116731 is about 10959.7778718366. Note that the first 3 decimals coincide. The cubic root of 120116731 is about 493.4022982578.

Adding to 120116731 its reverse (137611021), we get a palindrome (257727752).

The spelling of 120116731 in words is "one hundred twenty million, one hundred sixteen thousand, seven hundred thirty-one".

Divisors: 1 7 907 6349 18919 132433 17159533 120116731