Search a number
-
+
12478152350 = 252249563047
BaseRepresentation
bin10111001111100000…
…10111111010011110
31012012121211211001202
423213300113322132
5201023401333400
65422110035502
7621135354626
oct134760277236
935177754052
1012478152350
115323656604
122502aa8b92
13123b23a501
14865327886
154d07204d5
hex2e7c17e9e

12478152350 has 12 divisors (see below), whose sum is σ = 23209363464. Its totient is φ = 4991260920.

The previous prime is 12478152319. The next prime is 12478152353. The reversal of 12478152350 is 5325187421.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12478152353) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124781474 + ... + 124781573.

It is an arithmetic number, because the mean of its divisors is an integer number (1934113622).

Almost surely, 212478152350 is an apocalyptic number.

12478152350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12478152350 is a deficient number, since it is larger than the sum of its proper divisors (10731211114).

12478152350 is a wasteful number, since it uses less digits than its factorization.

12478152350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249563059 (or 249563054 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 12478152350 in words is "twelve billion, four hundred seventy-eight million, one hundred fifty-two thousand, three hundred fifty".

Divisors: 1 2 5 10 25 50 249563047 499126094 1247815235 2495630470 6239076175 12478152350