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12215301102 = 232678627839
BaseRepresentation
bin10110110000001011…
…01011001111101110
31011112022020120221100
423120011223033232
5200004104113402
65340040143530
7611464226514
oct133005531756
934468216840
1012215301102
1151a9245574
12244aa67ba6
1311c8948524
1483c4644b4
154b75ed71c
hex2d816b3ee

12215301102 has 12 divisors (see below), whose sum is σ = 26466485760. Its totient is φ = 4071767028.

The previous prime is 12215301097. The next prime is 12215301113. The reversal of 12215301102 is 20110351221.

12215301102 is a `hidden beast` number, since 1 + 2 + 21 + 530 + 110 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 678627839 = 12215301102 / (1 + 2 + 2 + 1 + 5 + 3 + 0 + 1 + 1 + 0 + 2).

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 5 ways as a sum of consecutive naturals, for example, 339313902 + ... + 339313937.

It is an arithmetic number, because the mean of its divisors is an integer number (2205540480).

Almost surely, 212215301102 is an apocalyptic number.

12215301102 is an abundant number, since it is smaller than the sum of its proper divisors (14251184658).

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

12215301102 is a wasteful number, since it uses less digits than its factorization.

12215301102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678627847 (or 678627844 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 12215301102 its reverse (20110351221), we get a palindrome (32325652323).

The spelling of 12215301102 in words is "twelve billion, two hundred fifteen million, three hundred one thousand, one hundred two".

Divisors: 1 2 3 6 9 18 678627839 1357255678 2035883517 4071767034 6107650551 12215301102