Search a number
-
+
2239937 = 72172689
BaseRepresentation
bin1000100010110111000001
311012210121122
420202313001
51033134222
6120002025
725016300
oct10426701
94183548
102239937
11129a997
12900315
1360570b
14424437
152e3a42
hex222dc1

2239937 has 12 divisors (see below), whose sum is σ = 2759940. Its totient is φ = 1806336.

The previous prime is 2239933. The next prime is 2239949. The reversal of 2239937 is 7399322.

It can be written as a sum of positive squares in 2 ways, for example, as 790321 + 1449616 = 889^2 + 1204^2 .

It is not a de Polignac number, because 2239937 - 22 = 2239933 is a prime.

It is a d-powerful number, because it can be written as 25 + 219 + 37 + 93 + 93 + 313 + 76 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2239897 and 2239906.

It is not an unprimeable number, because it can be changed into a prime (2239933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 512 + ... + 2177.

It is an arithmetic number, because the mean of its divisors is an integer number (229995).

22239937 is an apocalyptic number.

It is an amenable number.

2239937 is a deficient number, since it is larger than the sum of its proper divisors (520003).

2239937 is a wasteful number, since it uses less digits than its factorization.

2239937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720 (or 2713 counting only the distinct ones).

The product of its digits is 20412, while the sum is 35.

The square root of 2239937 is about 1496.6419077388. The cubic root of 2239937 is about 130.8414257462.

The spelling of 2239937 in words is "two million, two hundred thirty-nine thousand, nine hundred thirty-seven".

Divisors: 1 7 17 49 119 833 2689 18823 45713 131761 319991 2239937