Search a number
-
+
2608641 = 32747881
BaseRepresentation
bin1001111100111000000001
311220112101100
421330320001
51131434031
6131525013
731113240
oct11747001
94815340
102608641
111521a02
12a59769
13704499
144bc957
15367de6
hex27ce01

2608641 has 24 divisors (see below), whose sum is σ = 4402944. Its totient is φ = 1457280.

The previous prime is 2608631. The next prime is 2608649. The reversal of 2608641 is 1468062.

It is not a de Polignac number, because 2608641 - 26 = 2608577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2608649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2521 + ... + 3401.

It is an arithmetic number, because the mean of its divisors is an integer number (183456).

22608641 is an apocalyptic number.

2608641 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2608641 is a deficient number, since it is larger than the sum of its proper divisors (1794303).

2608641 is a wasteful number, since it uses less digits than its factorization.

2608641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941 (or 938 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2608641 is about 1615.1287874346. The cubic root of 2608641 is about 137.6590512105.

It can be divided in two parts, 2608 and 641, that added together give a square (3249 = 572).

The spelling of 2608641 in words is "two million, six hundred eight thousand, six hundred forty-one".

Divisors: 1 3 7 9 21 47 63 141 329 423 881 987 2643 2961 6167 7929 18501 41407 55503 124221 289849 372663 869547 2608641