Search a number
-
+
3133081 = 71923557
BaseRepresentation
bin1011111100111010011001
312220011210001
423330322121
51300224311
6151053001
735426230
oct13747231
95804701
103133081
11184aa26
121071161
138590c3
145b7b17
1541d4c1
hex2fce99

3133081 has 8 divisors (see below), whose sum is σ = 3769280. Its totient is φ = 2544048.

The previous prime is 3133057. The next prime is 3133111. The reversal of 3133081 is 1803313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3133081 - 215 = 3100313 is a prime.

It is a super-2 number, since 2×31330812 = 19632393105122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3133181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11646 + ... + 11911.

It is an arithmetic number, because the mean of its divisors is an integer number (471160).

Almost surely, 23133081 is an apocalyptic number.

It is an amenable number.

3133081 is a deficient number, since it is larger than the sum of its proper divisors (636199).

3133081 is a wasteful number, since it uses less digits than its factorization.

3133081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23583.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 3133081 is about 1770.0511292050. The cubic root of 3133081 is about 146.3267997053.

Adding to 3133081 its reverse (1803313), we get a palindrome (4936394).

The spelling of 3133081 in words is "three million, one hundred thirty-three thousand, eighty-one".

Divisors: 1 7 19 133 23557 164899 447583 3133081