Search a number
-
+
12220000030 = 257174571429
BaseRepresentation
bin10110110000101111…
…00110011100011110
31011112122002022122201
423120113212130132
5200011310000110
65340325002114
7611552200150
oct133027463436
934478068581
1012220000030
115200964987
12245055333a
1311c9902264
1483cd28ad0
154b7c2ab3a
hex2d85e671e

12220000030 has 16 divisors (see below), whose sum is σ = 25138285920. Its totient is φ = 4189714272.

The previous prime is 12219999977. The next prime is 12220000057. The reversal of 12220000030 is 3000002221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 12219999971 and 12220000016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87285645 + ... + 87285784.

It is an arithmetic number, because the mean of its divisors is an integer number (1571142870).

Almost surely, 212220000030 is an apocalyptic number.

12220000030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12220000030 is an abundant number, since it is smaller than the sum of its proper divisors (12918285890).

12220000030 is a wasteful number, since it uses less digits than its factorization.

12220000030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174571443.

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 12220000030 its reverse (3000002221), we get a palindrome (15220002251).

The spelling of 12220000030 in words is "twelve billion, two hundred twenty million, thirty", and thus it is an aban number.

Divisors: 1 2 5 7 10 14 35 70 174571429 349142858 872857145 1222000003 1745714290 2444000006 6110000015 12220000030