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5305457881 = 5987886163
BaseRepresentation
bin1001111000011101…
…01101110011011001
3111200202011012000001
410330032231303121
541331144123011
62234242213001
7245321435143
oct47416556331
914622135001
105305457881
11228287a039
121040954161
1366721a9b9
14384895c93
15210b927c1
hex13c3adcd9

5305457881 has 4 divisors (see below), whose sum is σ = 5306350032. Its totient is φ = 5304565732.

The previous prime is 5305457879. The next prime is 5305457921. The reversal of 5305457881 is 1887545035.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1887545035 = 5377509007.

It is a cyclic number.

It is not a de Polignac number, because 5305457881 - 21 = 5305457879 is a prime.

It is a super-2 number, since 2×53054578812 = 56295766654130020322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5305457821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437095 + ... + 449068.

It is an arithmetic number, because the mean of its divisors is an integer number (1326587508).

Almost surely, 25305457881 is an apocalyptic number.

It is an amenable number.

5305457881 is a deficient number, since it is larger than the sum of its proper divisors (892151).

5305457881 is an equidigital number, since it uses as much as digits as its factorization.

5305457881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892150.

The product of its (nonzero) digits is 672000, while the sum is 46.

The square root of 5305457881 is about 72838.5741279990. The cubic root of 5305457881 is about 1744.1116795092. Note that the first 3 decimals are identical.

The spelling of 5305457881 in words is "five billion, three hundred five million, four hundred fifty-seven thousand, eight hundred eighty-one".

Divisors: 1 5987 886163 5305457881