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12422243454 = 2311318321893
BaseRepresentation
bin10111001000110110…
…00110010001111110
31012001201122100110220
423210123012101332
5200420043242304
65412351442210
7616556220135
oct134433062176
935051570426
1012422243454
1152a503a405
1224a8226366
13122c79371a
1485bb3291c
154ca879ad9
hex2e46c647e

12422243454 has 16 divisors (see below), whose sum is σ = 25064350992. Its totient is φ = 4104103808.

The previous prime is 12422243447. The next prime is 12422243459. The reversal of 12422243454 is 45434222421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12422243459) 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, 9160269 + ... + 9161624.

It is an arithmetic number, because the mean of its divisors is an integer number (1566521937).

Almost surely, 212422243454 is an apocalyptic number.

12422243454 is an abundant number, since it is smaller than the sum of its proper divisors (12642107538).

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

12422243454 is a wasteful number, since it uses less digits than its factorization.

12422243454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18322011.

The product of its digits is 61440, while the sum is 33.

Adding to 12422243454 its reverse (45434222421), we get a palindrome (57856465875).

The spelling of 12422243454 in words is "twelve billion, four hundred twenty-two million, two hundred forty-three thousand, four hundred fifty-four".

Divisors: 1 2 3 6 113 226 339 678 18321893 36643786 54965679 109931358 2070373909 4140747818 6211121727 12422243454