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83480256281 = 194393697699
BaseRepresentation
bin100110110111111001…
…1111001111100011001
321222110212211102002202
41031233303321330121
52331431421200111
6102203355335545
76013501320242
oct1155763717431
9258425742082
1083480256281
1132449479144
12142194515b5
137b4517a866
14407d077cc9
152288ccab3b
hex136fcf9f19

83480256281 has 4 divisors (see below), whose sum is σ = 87873954000. Its totient is φ = 79086558564.

The previous prime is 83480256263. The next prime is 83480256337. The reversal of 83480256281 is 18265208438.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83480256281 - 214 = 83480239897 is a prime.

It is a super-2 number, since 2×834802562812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83480256241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2196848831 + ... + 2196848868.

It is an arithmetic number, because the mean of its divisors is an integer number (21968488500).

Almost surely, 283480256281 is an apocalyptic number.

It is an amenable number.

83480256281 is a deficient number, since it is larger than the sum of its proper divisors (4393697719).

83480256281 is a wasteful number, since it uses less digits than its factorization.

83480256281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393697718.

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 83480256281 in words is "eighty-three billion, four hundred eighty million, two hundred fifty-six thousand, two hundred eighty-one".

Divisors: 1 19 4393697699 83480256281