Search a number
-
+
12406532050 = 2521129777839
BaseRepresentation
bin10111000110111110…
…01010011111010010
31012000122002010111001
423203133022133102
5200402033011200
65411031012214
7616305532243
oct134337123722
935018063431
1012406532050
115297189180
1224a2b0a06a
131229452333
14859a02cca
154c92c476a
hex2e37ca7d2

12406532050 has 48 divisors (see below), whose sum is σ = 26042083200. Its totient is φ = 4355892800.

The previous prime is 12406532023. The next prime is 12406532059. The reversal of 12406532050 is 5023560421.

It is not an unprimeable number, because it can be changed into a prime (12406532059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 372970 + ... + 404869.

It is an arithmetic number, because the mean of its divisors is an integer number (542543400).

Almost surely, 212406532050 is an apocalyptic number.

12406532050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12406532050 is an abundant number, since it is smaller than the sum of its proper divisors (13635551150).

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

12406532050 is a wasteful number, since it uses less digits than its factorization.

12406532050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777891 (or 777886 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 12406532050 in words is "twelve billion, four hundred six million, five hundred thirty-two thousand, fifty".

Divisors: 1 2 5 10 11 22 25 29 50 55 58 110 145 275 290 319 550 638 725 1450 1595 3190 7975 15950 777839 1555678 3889195 7778390 8556229 17112458 19445975 22557331 38891950 42781145 45114662 85562290 112786655 213905725 225573310 248130641 427811450 496261282 563933275 1127866550 1240653205 2481306410 6203266025 12406532050