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120830089 = 532279813
BaseRepresentation
bin1110011001110…
…11100010001001
322102100210201111
413030323202021
5221413030324
615553450321
72665016212
oct714734211
9272323644
10120830089
1162229486
12345709a1
131c0579c3
1412094409
15a91b794
hex733b889

120830089 has 4 divisors (see below), whose sum is σ = 123109956. Its totient is φ = 118550224.

The previous prime is 120830051. The next prime is 120830093. The reversal of 120830089 is 980038021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 97713225 + 23116864 = 9885^2 + 4808^2 .

It is a cyclic number.

It is not a de Polignac number, because 120830089 - 217 = 120699017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120830089.

It is not an unprimeable number, because it can be changed into a prime (120830029) 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, 1139854 + ... + 1139959.

It is an arithmetic number, because the mean of its divisors is an integer number (30777489).

Almost surely, 2120830089 is an apocalyptic number.

It is an amenable number.

120830089 is a deficient number, since it is larger than the sum of its proper divisors (2279867).

120830089 is an equidigital number, since it uses as much as digits as its factorization.

120830089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279866.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 120830089 is about 10992.2740595384. The cubic root of 120830089 is about 494.3771221932.

The spelling of 120830089 in words is "one hundred twenty million, eight hundred thirty thousand, eighty-nine".

Divisors: 1 53 2279813 120830089