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12441404220 = 22357311019461
BaseRepresentation
bin10111001011001000…
…01100001100111100
31012010001200211002220
423211210030030330
5200434444413340
65414314245340
7620211122340
oct134544141474
935101624086
1012441404220
115304937153
1224b2726850
131233741b5b
148604bd620
154cc3b1ed0
hex2e590c33c

12441404220 has 192 divisors, whose sum is σ = 41508052992. Its totient is φ = 2724480000.

The previous prime is 12441404167. The next prime is 12441404233. The reversal of 12441404220 is 2240414421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1310290 + ... + 1319750.

It is an arithmetic number, because the mean of its divisors is an integer number (216187776).

Almost surely, 212441404220 is an apocalyptic number.

12441404220 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 12441404220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20754026496).

12441404220 is an abundant number, since it is smaller than the sum of its proper divisors (29066648772).

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

12441404220 is a wasteful number, since it uses less digits than its factorization.

12441404220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9612 (or 9610 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 12441404220 its reverse (2240414421), we get a palindrome (14681818641).

The spelling of 12441404220 in words is "twelve billion, four hundred forty-one million, four hundred four thousand, two hundred twenty".