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120661338 = 2372872889
BaseRepresentation
bin1110011000100…
…10010101011010
322102001020020110
413030102111122
5221342130323
615550105150
72663414220
oct714222532
9272036213
10120661338
1162123716
12344ab1b6
131bcc8c55
141204cb10
15a8d6793
hex731255a

120661338 has 16 divisors (see below), whose sum is σ = 275797440. Its totient is φ = 34474656.

The previous prime is 120661279. The next prime is 120661339. The reversal of 120661338 is 833166021.

It is not an unprimeable number, because it can be changed into a prime (120661339) 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, 1436403 + ... + 1436486.

It is an arithmetic number, because the mean of its divisors is an integer number (17237340).

Almost surely, 2120661338 is an apocalyptic number.

120661338 is an abundant number, since it is smaller than the sum of its proper divisors (155136102).

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

120661338 is a wasteful number, since it uses less digits than its factorization.

120661338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2872901.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 120661338 is about 10984.5954864073. The cubic root of 120661338 is about 494.1468663510.

The spelling of 120661338 in words is "one hundred twenty million, six hundred sixty-one thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 7 14 21 42 2872889 5745778 8618667 17237334 20110223 40220446 60330669 120661338