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120136073 = 505923747
BaseRepresentation
bin1110010100100…
…10000110001001
322101001112201012
413022102012021
5221223323243
615530533305
72656065641
oct712220611
9271045635
10120136073
11618a5012
1234297235
131bb73b45
1411d53521
15a830d18
hex7292189

120136073 has 4 divisors (see below), whose sum is σ = 120164880. Its totient is φ = 120107268.

The previous prime is 120136043. The next prime is 120136087. The reversal of 120136073 is 370631021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 370631021 = 419039781.

It is a cyclic number.

It is not a de Polignac number, because 120136073 - 28 = 120135817 is a prime.

It is a super-2 number, since 2×1201360732 = 28865352071722658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120136013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6815 + ... + 16932.

It is an arithmetic number, because the mean of its divisors is an integer number (30041220).

Almost surely, 2120136073 is an apocalyptic number.

It is an amenable number.

120136073 is a deficient number, since it is larger than the sum of its proper divisors (28807).

120136073 is an equidigital number, since it uses as much as digits as its factorization.

120136073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28806.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 120136073 is about 10960.6602447115. The cubic root of 120136073 is about 493.4287804832.

Adding to 120136073 its reverse (370631021), we get a palindrome (490767094).

The spelling of 120136073 in words is "one hundred twenty million, one hundred thirty-six thousand, seventy-three".

Divisors: 1 5059 23747 120136073