Search a number
-
+
5670881 = 47911839
BaseRepresentation
bin10101101000011111100001
3101200002222122
4111220133201
52422432011
6321314025
766126116
oct25503741
911602878
105670881
113223687
121a95915
131237268
14a7890d
157703db
hex5687e1

5670881 has 4 divisors (see below), whose sum is σ = 5683200. Its totient is φ = 5658564.

The previous prime is 5670869. The next prime is 5670887. The reversal of 5670881 is 1880765.

It is a happy number.

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: 1880765 = 5376153.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5670881 is a prime.

It is a super-2 number, since 2×56708812 = 64317782632322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5670887) 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, 5441 + ... + 6398.

It is an arithmetic number, because the mean of its divisors is an integer number (1420800).

Almost surely, 25670881 is an apocalyptic number.

It is an amenable number.

5670881 is a deficient number, since it is larger than the sum of its proper divisors (12319).

5670881 is a wasteful number, since it uses less digits than its factorization.

5670881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12318.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 5670881 is about 2381.3611653842. The cubic root of 5670881 is about 178.3268937223.

The spelling of 5670881 in words is "five million, six hundred seventy thousand, eight hundred eighty-one".

Divisors: 1 479 11839 5670881