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12245534401 = 172491728909
BaseRepresentation
bin10110110011110010…
…00000011011000001
31011121102010121020011
423121321000123001
5200034324100101
65343040144521
7612312216322
oct133171003301
934542117204
1012245534401
115214315271
122459008141
131201ca2759
14842494449
154ba0c1751
hex2d9e406c1

12245534401 has 8 divisors (see below), whose sum is σ = 12966828840. Its totient is φ = 11524347648.

The previous prime is 12245534387. The next prime is 12245534419. The reversal of 12245534401 is 10443554221.

It can be written as a sum of positive squares in 4 ways, for example, as 8808761025 + 3436773376 = 93855^2 + 58624^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12245534401 - 211 = 12245532353 is a prime.

It is a super-2 number, since 2×122455344012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12245534491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409135 + ... + 438043.

It is an arithmetic number, because the mean of its divisors is an integer number (1620853605).

Almost surely, 212245534401 is an apocalyptic number.

It is an amenable number.

12245534401 is a deficient number, since it is larger than the sum of its proper divisors (721294439).

12245534401 is a wasteful number, since it uses less digits than its factorization.

12245534401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53843.

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 12245534401 in words is "twelve billion, two hundred forty-five million, five hundred thirty-four thousand, four hundred one".

Divisors: 1 17 24917 28909 423589 491453 720325553 12245534401