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120680387 = 617332699
BaseRepresentation
bin1110011000101…
…10111111000011
322102002012100222
413030112333003
5221343233022
615550333255
72663523602
oct714267703
9272065328
10120680387
1162136a63
12344ba22b
131c004819
1412055a39
15a8dc242
hex7316fc3

120680387 has 8 divisors (see below), whose sum is σ = 122871600. Its totient is φ = 118496160.

The previous prime is 120680377. The next prime is 120680407. The reversal of 120680387 is 783086021.

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

It is not a de Polignac number, because 120680387 - 212 = 120676291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120680377) 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, 43364 + ... + 46062.

It is an arithmetic number, because the mean of its divisors is an integer number (15358950).

Almost surely, 2120680387 is an apocalyptic number.

120680387 is a deficient number, since it is larger than the sum of its proper divisors (2191213).

120680387 is an equidigital number, since it uses as much as digits as its factorization.

120680387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 120680387 is about 10985.4625300895. The cubic root of 120680387 is about 494.1728689036.

The spelling of 120680387 in words is "one hundred twenty million, six hundred eighty thousand, three hundred eighty-seven".

Divisors: 1 61 733 2699 44713 164639 1978367 120680387