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120880117 = 173698729
BaseRepresentation
bin1110011010001…
…11101111110101
322102110100100101
413031013233311
5221421130432
615554514101
72665315111
oct715075765
9272410311
10120880117
1162263026
1234595931
131c0746c7
14120a8741
15a92b4e7
hex7347bf5

120880117 has 4 divisors (see below), whose sum is σ = 121579020. Its totient is φ = 120181216.

The previous prime is 120880103. The next prime is 120880153. The reversal of 120880117 is 711088021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 711088021 = 7101584003.

It can be written as a sum of positive squares in 2 ways, for example, as 81830116 + 39050001 = 9046^2 + 6249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120880117 is a prime.

It is a super-2 number, since 2×1208801172 = 29224005371867378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120880187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349192 + ... + 349537.

It is an arithmetic number, because the mean of its divisors is an integer number (30394755).

Almost surely, 2120880117 is an apocalyptic number.

It is an amenable number.

120880117 is a deficient number, since it is larger than the sum of its proper divisors (698903).

120880117 is an equidigital number, since it uses as much as digits as its factorization.

120880117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698902.

The product of its (nonzero) digits is 896, while the sum is 28.

The square root of 120880117 is about 10994.5494223274. The cubic root of 120880117 is about 494.4453427450.

The spelling of 120880117 in words is "one hundred twenty million, eight hundred eighty thousand, one hundred seventeen".

Divisors: 1 173 698729 120880117