Search a number
-
+
123012240234025 = 52199195011267939
BaseRepresentation
bin11011111110000100000100…
…111000011101011000101001
3121010112212002112012121212111
4123332010010320131120221
5112110413031444442100
61113343013143042321
734624224662543602
oct3376040470353051
9533485075177774
10123012240234025
113621721a76497a
121196871a4403a1
135384009ac48ac
142253b7783ada9
15e34c6d7706ba
hex6fe104e1d629

123012240234025 has 24 divisors (see below), whose sum is σ = 153309668456000. Its totient is φ = 97910172360000.

The previous prime is 123012240234019. The next prime is 123012240234151. The reversal of 123012240234025 is 520432042210321.

It is a happy number.

It is not a de Polignac number, because 123012240234025 - 217 = 123012240102953 is a prime.

It is a super-2 number, since 2×1230122402340252 (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96383506 + ... + 97651444.

Almost surely, 2123012240234025 is an apocalyptic number.

It is an amenable number.

123012240234025 is a deficient number, since it is larger than the sum of its proper divisors (30297428221975).

123012240234025 is a wasteful number, since it uses less digits than its factorization.

123012240234025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287649 (or 1287644 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 123012240234025 its reverse (520432042210321), we get a palindrome (643444282444346).

The spelling of 123012240234025 in words is "one hundred twenty-three trillion, twelve billion, two hundred forty million, two hundred thirty-four thousand, twenty-five".

Divisors: 1 5 25 199 995 4975 19501 97505 487525 1267939 3880699 6339695 19403495 31698475 97017475 252319861 1261599305 6307996525 24726078439 123630392195 618151960975 4920489609361 24602448046805 123012240234025