Search a number
-
+
120793839 = 340264613
BaseRepresentation
bin1110011001100…
…10101011101111
322102021221222220
413030302223233
5221410400324
615553010423
72664505425
oct714625357
9272257886
10120793839
1162204221
1234553a13
131c04435a
1412085115
15a910b79
hex7332aef

120793839 has 4 divisors (see below), whose sum is σ = 161058456. Its totient is φ = 80529224.

The previous prime is 120793781. The next prime is 120793867. The reversal of 120793839 is 938397021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938397021 = 3312799007.

It is a cyclic number.

It is not a de Polignac number, because 120793839 - 27 = 120793711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120793839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120793139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20132304 + ... + 20132309.

It is an arithmetic number, because the mean of its divisors is an integer number (40264614).

Almost surely, 2120793839 is an apocalyptic number.

120793839 is a deficient number, since it is larger than the sum of its proper divisors (40264617).

120793839 is an equidigital number, since it uses as much as digits as its factorization.

120793839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40264616.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 120793839 is about 10990.6250504691. The cubic root of 120793839 is about 494.3276782087.

The spelling of 120793839 in words is "one hundred twenty million, seven hundred ninety-three thousand, eight hundred thirty-nine".

Divisors: 1 3 40264613 120793839