Search a number
-
+
122131106 = 261065553
BaseRepresentation
bin1110100011110…
…01001010100010
322111210220101022
413101321022202
5222231143411
620041405442
73012045236
oct721711242
9274726338
10122131106
1162a379a9
1234a99882
131c3c1c36
14123125c6
15aac6edb
hex74792a2

122131106 has 4 divisors (see below), whose sum is σ = 183196662. Its totient is φ = 61065552.

The previous prime is 122131091. The next prime is 122131123. The reversal of 122131106 is 601131221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 601131221 = 3171896313.

It can be written as a sum of positive squares in only one way, i.e., 93412225 + 28718881 = 9665^2 + 5359^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30532775 + ... + 30532778.

Almost surely, 2122131106 is an apocalyptic number.

122131106 is a deficient number, since it is larger than the sum of its proper divisors (61065556).

122131106 is an equidigital number, since it uses as much as digits as its factorization.

122131106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61065555.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 122131106 is about 11051.2943133372. The cubic root of 122131106 is about 496.1451648681.

Adding to 122131106 its reverse (601131221), we get a palindrome (723262327).

The spelling of 122131106 in words is "one hundred twenty-two million, one hundred thirty-one thousand, one hundred six".

Divisors: 1 2 61065553 122131106