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308426319485 = 561685263897
BaseRepresentation
bin1000111110011111010…
…01000010011001111101
31002111002202112102000222
410133033221002121331
520023124114210420
6353404502231125
731166043313424
oct4371751023175
91074082472028
10308426319485
111098916868a9
124b9374254a5
1323113799c7b
1410cdc2a22bb
15805231b225
hex47cfa4267d

308426319485 has 4 divisors (see below), whose sum is σ = 370111583388. Its totient is φ = 246741055584.

The previous prime is 308426319479. The next prime is 308426319491. The reversal of 308426319485 is 584913624803.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 584913624803 = 988759159869.

It is an interprime number because it is at equal distance from previous prime (308426319479) and next prime (308426319491).

It can be written as a sum of positive squares in 2 ways, for example, as 230911964089 + 77514355396 = 480533^2 + 278414^2 .

It is a cyclic number.

It is not a de Polignac number, because 308426319485 - 210 = 308426318461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30842631944 + ... + 30842631953.

It is an arithmetic number, because the mean of its divisors is an integer number (92527895847).

Almost surely, 2308426319485 is an apocalyptic number.

It is an amenable number.

308426319485 is a deficient number, since it is larger than the sum of its proper divisors (61685263903).

308426319485 is an equidigital number, since it uses as much as digits as its factorization.

308426319485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61685263902.

The product of its (nonzero) digits is 4976640, while the sum is 53.

The spelling of 308426319485 in words is "three hundred eight billion, four hundred twenty-six million, three hundred nineteen thousand, four hundred eighty-five".

Divisors: 1 5 61685263897 308426319485