Search a number
-
+
12150128238 = 239722791967
BaseRepresentation
bin10110101000011010…
…00011111001101110
31011100202121110120120
423110031003321232
5144340413100423
65325351225410
7610043246253
oct132415037156
934322543516
1012150128238
1151754811a6
122431078266
1311b82a9bc1
1483393b42a
154b1a27ee3
hex2d4343e6e

12150128238 has 32 divisors (see below), whose sum is σ = 24659195904. Its totient is φ = 3990588672.

The previous prime is 12150128201. The next prime is 12150128269. The reversal of 12150128238 is 83282105121.

It is a junction number, because it is equal to n+sod(n) for n = 12150128199 and 12150128208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86131 + ... + 178097.

It is an arithmetic number, because the mean of its divisors is an integer number (770599872).

Almost surely, 212150128238 is an apocalyptic number.

12150128238 is an abundant number, since it is smaller than the sum of its proper divisors (12509067666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12150128238 is a wasteful number, since it uses less digits than its factorization.

12150128238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92296.

The product of its (nonzero) digits is 7680, while the sum is 33.

The spelling of 12150128238 in words is "twelve billion, one hundred fifty million, one hundred twenty-eight thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 97 194 227 291 454 582 681 1362 22019 44038 66057 91967 132114 183934 275901 551802 8920799 17841598 20876509 26762397 41753018 53524794 62629527 125259054 2025021373 4050042746 6075064119 12150128238