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120104131 = 717157733
BaseRepresentation
bin1110010100010…
…10010011000011
322100222220220011
413022022103003
5221221313011
615530125351
72655603550
oct712122303
9270886804
10120104131
1161883014
1234280857
131bb62444
1411d45a27
15a826621
hex728a4c3

120104131 has 4 divisors (see below), whose sum is σ = 137261872. Its totient is φ = 102946392.

The previous prime is 120104123. The next prime is 120104141. The reversal of 120104131 is 131401021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131401021 = 637920599.

It is a cyclic number.

It is not a de Polignac number, because 120104131 - 23 = 120104123 is a prime.

It is a super-2 number, since 2×1201041312 = 28850004566530322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120104141) 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, 8578860 + ... + 8578873.

It is an arithmetic number, because the mean of its divisors is an integer number (34315468).

Almost surely, 2120104131 is an apocalyptic number.

120104131 is a deficient number, since it is larger than the sum of its proper divisors (17157741).

120104131 is an equidigital number, since it uses as much as digits as its factorization.

120104131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17157740.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 120104131 is about 10959.2030275928. The cubic root of 120104131 is about 493.3850453564.

Adding to 120104131 its reverse (131401021), we get a palindrome (251505152).

The spelling of 120104131 in words is "one hundred twenty million, one hundred four thousand, one hundred thirty-one".

Divisors: 1 7 17157733 120104131