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12244141021 = 723110973951
BaseRepresentation
bin10110110011100111…
…01100001111011101
31011121022111210212111
423121303230033131
5200034000003041
65342550234021
7612264324100
oct133163541735
934538453774
1012244141021
115213553412
122458655911
131201905478
14842210737
154b9de8981
hex2d9cec3dd

12244141021 has 24 divisors (see below), whose sum is σ = 14837729280. Its totient is φ = 10063116000.

The previous prime is 12244141009. The next prime is 12244141031. The reversal of 12244141021 is 12014144221.

It is not a de Polignac number, because 12244141021 - 233 = 3654206429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12244140983 and 12244141001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12244141031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128596 + ... + 202546.

It is an arithmetic number, because the mean of its divisors is an integer number (618238720).

Almost surely, 212244141021 is an apocalyptic number.

It is an amenable number.

12244141021 is a deficient number, since it is larger than the sum of its proper divisors (2593588259).

12244141021 is a wasteful number, since it uses less digits than its factorization.

12244141021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74105 (or 74098 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 12244141021 its reverse (12014144221), we get a palindrome (24258285242).

The spelling of 12244141021 in words is "twelve billion, two hundred forty-four million, one hundred forty-one thousand, twenty-one".

Divisors: 1 7 31 49 109 217 763 1519 3379 5341 23653 73951 165571 517657 2292481 3623599 8060659 16047367 56424613 112331569 249880429 394972291 1749163003 12244141021