Search a number
-
+
12210010002 = 2324116544729
BaseRepresentation
bin10110101111100010…
…11111011110010010
31011111221021202220200
423113301133132102
5200001230310002
65335330520030
7611401241541
oct132761373622
934457252820
1012210010002
1151a6261263
122449136016
1311c78150b8
1483b888158
154b6e05b1c
hex2d7c5f792

12210010002 has 24 divisors (see below), whose sum is σ = 27100267740. Its totient is φ = 3970734720.

The previous prime is 12210009971. The next prime is 12210010013. The reversal of 12210010002 is 20001001221.

It can be written as a sum of positive squares in 2 ways, for example, as 12203399961 + 6610041 = 110469^2 + 2571^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

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, 8271627 + ... + 8273102.

Almost surely, 212210010002 is an apocalyptic number.

12210010002 is an abundant number, since it is smaller than the sum of its proper divisors (14890257738).

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

12210010002 is a wasteful number, since it uses less digits than its factorization.

12210010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16544778 (or 16544775 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12210010002 its reverse (20001001221), we get a palindrome (32211011223).

The spelling of 12210010002 in words is "twelve billion, two hundred ten million, ten thousand, two".

Divisors: 1 2 3 6 9 18 41 82 123 246 369 738 16544729 33089458 49634187 99268374 148902561 297805122 678333889 1356667778 2035001667 4070003334 6105005001 12210010002