Search a number
-
+
12227447660 = 225611372383
BaseRepresentation
bin10110110001101000…
…00000101101101100
31011120011002200212212
423120310000231230
5200020211311120
65341152345552
7612002406311
oct133064005554
934504080785
1012227447660
11520509144a
122452b452b8
1311cb30c13c
1483dd06d08
154b86ec6c5
hex2d8d00b6c

12227447660 has 12 divisors (see below), whose sum is σ = 25677640128. Its totient is φ = 4890979056.

The previous prime is 12227447647. The next prime is 12227447669. The reversal of 12227447660 is 6674472221.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12227447669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305686172 + ... + 305686211.

It is an arithmetic number, because the mean of its divisors is an integer number (2139803344).

Almost surely, 212227447660 is an apocalyptic number.

12227447660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12227447660 is an abundant number, since it is smaller than the sum of its proper divisors (13450192468).

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

12227447660 is a wasteful number, since it uses less digits than its factorization.

12227447660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611372392 (or 611372390 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 41.

The spelling of 12227447660 in words is "twelve billion, two hundred twenty-seven million, four hundred forty-seven thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 611372383 1222744766 2445489532 3056861915 6113723830 12227447660