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5380312681 = 8116634171
BaseRepresentation
bin1010000001011000…
…10000111001101001
3111212222000012111001
411000230100321221
542004330001211
62245514435001
7250220621542
oct50054207151
914788005431
105380312681
112311056607
121061a32a61
13679899193
143907bd4c9
1521752bac1
hex140b10e69

5380312681 has 4 divisors (see below), whose sum is σ = 5386947664. Its totient is φ = 5373677700.

The previous prime is 5380312661. The next prime is 5380312739. The reversal of 5380312681 is 1862130835.

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 5380312681 - 221 = 5378215529 is a prime.

It is a super-2 number, since 2×53803126812 = 57895529090658815522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5380312681.

It is not an unprimeable number, because it can be changed into a prime (5380312661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3316275 + ... + 3317896.

It is an arithmetic number, because the mean of its divisors is an integer number (1346736916).

Almost surely, 25380312681 is an apocalyptic number.

It is an amenable number.

5380312681 is a deficient number, since it is larger than the sum of its proper divisors (6634983).

5380312681 is an equidigital number, since it uses as much as digits as its factorization.

5380312681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6634982.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 5380312681 is about 73350.6147281671. The cubic root of 5380312681 is about 1752.2759699597.

The spelling of 5380312681 in words is "five billion, three hundred eighty million, three hundred twelve thousand, six hundred eighty-one".

Divisors: 1 811 6634171 5380312681