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120688393 = 719878677
BaseRepresentation
bin1110011000110…
…00111100001001
322102002121100111
413030120330021
5221344012033
615550434321
72663556130
oct714307411
9272077314
10120688393
1162141a81
12345029a1
131c008367
1412058917
15a8de7cd
hex7318f09

120688393 has 8 divisors (see below), whose sum is σ = 138014912. Its totient is φ = 103383216.

The previous prime is 120688357. The next prime is 120688441. The reversal of 120688393 is 393886021.

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 120688393 - 213 = 120680201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120688303) 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, 9571 + ... + 18247.

It is an arithmetic number, because the mean of its divisors is an integer number (17251864).

Almost surely, 2120688393 is an apocalyptic number.

It is an amenable number.

120688393 is a deficient number, since it is larger than the sum of its proper divisors (17326519).

120688393 is an equidigital number, since it uses as much as digits as its factorization.

120688393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10671.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 120688393 is about 10985.8269147115. The cubic root of 120688393 is about 494.1837965575.

The spelling of 120688393 in words is "one hundred twenty million, six hundred eighty-eight thousand, three hundred ninety-three".

Divisors: 1 7 1987 8677 13909 60739 17241199 120688393