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12213250196 = 227262312501
BaseRepresentation
bin10110101111111011…
…10110100010010100
31011112011101101121212
423113331312202110
5200003043001241
65335524200552
7611440625300
oct132775664224
934464341555
1012213250196
1151a8074704
12244a239158
1311c83aab84
1483c08cd00
154b7345beb
hex2d7f76894

12213250196 has 18 divisors (see below), whose sum is σ = 24862688298. Its totient is φ = 5234250000.

The previous prime is 12213250193. The next prime is 12213250207. The reversal of 12213250196 is 69105231221.

It can be written as a sum of positive squares in only one way, i.e., 12124212100 + 89038096 = 110110^2 + 9436^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213250193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31156055 + ... + 31156446.

It is an arithmetic number, because the mean of its divisors is an integer number (1381260461).

Almost surely, 212213250196 is an apocalyptic number.

It is an amenable number.

12213250196 is an abundant number, since it is smaller than the sum of its proper divisors (12649438102).

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

12213250196 is a wasteful number, since it uses less digits than its factorization.

12213250196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62312519 (or 62312510 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 12213250196 in words is "twelve billion, two hundred thirteen million, two hundred fifty thousand, one hundred ninety-six".

Divisors: 1 2 4 7 14 28 49 98 196 62312501 124625002 249250004 436187507 872375014 1744750028 3053312549 6106625098 12213250196