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12297873280 = 275711614091
BaseRepresentation
bin10110111010000001…
…01010011110000000
31011202001121200200011
423131000222132000
5200141223421110
65352150034304
7613516124650
oct133500523600
934661550604
1012297873280
115240913240
122472648994
13120ca995c4
148493da360
154be9ae48a
hex2dd02a780

12297873280 has 256 divisors, whose sum is σ = 37264043520. Its totient is φ = 3769344000.

The previous prime is 12297873277. The next prime is 12297873283. The reversal of 12297873280 is 8237879221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12297873277) and next prime (12297873283).

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12297873283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3004035 + ... + 3008125.

It is an arithmetic number, because the mean of its divisors is an integer number (145562670).

Almost surely, 212297873280 is an apocalyptic number.

12297873280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12297873280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18632021760).

12297873280 is an abundant number, since it is smaller than the sum of its proper divisors (24966170240).

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

12297873280 is a wasteful number, since it uses less digits than its factorization.

12297873280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4189 (or 4177 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 12297873280 in words is "twelve billion, two hundred ninety-seven million, eight hundred seventy-three thousand, two hundred eighty".