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12125760450 = 235280838403
BaseRepresentation
bin10110100101100000…
…00110101111000010
31011022001202110020220
423102300012233002
5144313143313300
65323121043510
7606326156166
oct132260065702
934261673226
1012125760450
115162748331
122424a86596
1311b32276ab
148305d6ca6
154ae812da0
hex2d2c06bc2

12125760450 has 24 divisors (see below), whose sum is σ = 30071886288. Its totient is φ = 3233536080.

The previous prime is 12125760443. The next prime is 12125760523. The reversal of 12125760450 is 5406752121.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40419052 + ... + 40419351.

It is an arithmetic number, because the mean of its divisors is an integer number (1252995262).

Almost surely, 212125760450 is an apocalyptic number.

12125760450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12125760450 is an abundant number, since it is smaller than the sum of its proper divisors (17946125838).

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

12125760450 is a wasteful number, since it uses less digits than its factorization.

12125760450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80838418 (or 80838413 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The spelling of 12125760450 in words is "twelve billion, one hundred twenty-five million, seven hundred sixty thousand, four hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 80838403 161676806 242515209 404192015 485030418 808384030 1212576045 2020960075 2425152090 4041920150 6062880225 12125760450