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14248493581 = 798312791619
BaseRepresentation
bin11010100010100011…
…01100001000001101
31100210000001110200111
431101101230020031
5213140103243311
610313510400021
71013043124420
oct152121541015
940700043614
1014248493581
1160519a3133
122917960011
131460c449ba
149924bd9b7
15585d6ad21
hex35146c20d

14248493581 has 16 divisors (see below), whose sum is σ = 16323379200. Its totient is φ = 12183501168.

The previous prime is 14248493563. The next prime is 14248493591. The reversal of 14248493581 is 18539484241.

It is a cyclic number.

It is not a de Polignac number, because 14248493581 - 25 = 14248493549 is a prime.

It is a super-2 number, since 2×142484935812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14248493591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8799990 + ... + 8801608.

It is an arithmetic number, because the mean of its divisors is an integer number (1020211200).

Almost surely, 214248493581 is an apocalyptic number.

It is an amenable number.

14248493581 is a deficient number, since it is larger than the sum of its proper divisors (2074885619).

14248493581 is a wasteful number, since it uses less digits than its factorization.

14248493581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3888.

The product of its digits is 1105920, while the sum is 49.

The spelling of 14248493581 in words is "fourteen billion, two hundred forty-eight million, four hundred ninety-three thousand, five hundred eighty-one".

Divisors: 1 7 983 1279 1619 6881 8953 11333 1257257 1591477 2070701 8800799 11140339 14494907 2035499083 14248493581