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120880145 = 5202711927
BaseRepresentation
bin1110011010001…
…11110000010001
322102110100101102
413031013300101
5221421131040
615554514145
72665315151
oct715076021
9272410342
10120880145
1162263051
1234595955
131c074719
14120a8761
15a92b515
hex7347c11

120880145 has 8 divisors (see below), whose sum is σ = 145139904. Its totient is φ = 96648304.

The previous prime is 120880103. The next prime is 120880153. The reversal of 120880145 is 541088021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120880145 is a prime.

It is a super-2 number, since 2×1208801452 = 29224018910442050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 4172 + ... + 16098.

It is an arithmetic number, because the mean of its divisors is an integer number (18142488).

Almost surely, 2120880145 is an apocalyptic number.

It is an amenable number.

120880145 is a deficient number, since it is larger than the sum of its proper divisors (24259759).

120880145 is a wasteful number, since it uses less digits than its factorization.

120880145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13959.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 120880145 is about 10994.5506956856. The cubic root of 120880145 is about 494.4453809219.

The spelling of 120880145 in words is "one hundred twenty million, eight hundred eighty thousand, one hundred forty-five".

Divisors: 1 5 2027 10135 11927 59635 24176029 120880145