Search a number
-
+
2993557 = 72199307
BaseRepresentation
bin1011011010110110010101
312122002101111
423122312111
51231243212
6144055021
734305400
oct13326625
95562344
102993557
111765116
121004471
1380a748
1457cd37
153e1ea7
hex2dad95

2993557 has 12 divisors (see below), whose sum is σ = 3511200. Its totient is φ = 2544696.

The previous prime is 2993527. The next prime is 2993563. The reversal of 2993557 is 7553992.

It is a de Polignac number, because none of the positive numbers 2k-2993557 is a prime.

It is a super-2 number, since 2×29935572 = 17922767024498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2993527) 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 11 ways as a sum of consecutive naturals, for example, 9598 + ... + 9904.

It is an arithmetic number, because the mean of its divisors is an integer number (292600).

22993557 is an apocalyptic number.

It is an amenable number.

2993557 is a deficient number, since it is larger than the sum of its proper divisors (517643).

2993557 is a wasteful number, since it uses less digits than its factorization.

2993557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520 (or 513 counting only the distinct ones).

The product of its digits is 85050, while the sum is 40.

The square root of 2993557 is about 1730.1898739734. The cubic root of 2993557 is about 144.1216339833.

It can be divided in two parts, 29935 and 57, that added together give a palindrome (29992).

The spelling of 2993557 in words is "two million, nine hundred ninety-three thousand, five hundred fifty-seven".

Divisors: 1 7 49 199 307 1393 2149 9751 15043 61093 427651 2993557