Search a number
-
+
3061639 = 73711821
BaseRepresentation
bin1011101011011110000111
312202112210001
423223132013
51240433024
6145342131
735011030
oct13533607
95675701
103061639
111801289
121037947
13832729
14599a87
15407244
hex2eb787

3061639 has 8 divisors (see below), whose sum is σ = 3593888. Its totient is φ = 2553120.

The previous prime is 3061637. The next prime is 3061661. The reversal of 3061639 is 9361603.

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 3061639 - 21 = 3061637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3061631) 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, 5652 + ... + 6169.

It is an arithmetic number, because the mean of its divisors is an integer number (449236).

Almost surely, 23061639 is an apocalyptic number.

3061639 is a deficient number, since it is larger than the sum of its proper divisors (532249).

3061639 is a wasteful number, since it uses less digits than its factorization.

3061639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11865.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 3061639 is about 1749.7539827073. The cubic root of 3061639 is about 145.2060329084.

The spelling of 3061639 in words is "three million, sixty-one thousand, six hundred thirty-nine".

Divisors: 1 7 37 259 11821 82747 437377 3061639