Search a number
-
+
2239788 = 223186649
BaseRepresentation
bin1000100010110100101100
311012210102010
420202310230
51033133123
6120001220
725015665
oct10426454
94183363
102239788
11129a871
12900210
13605625
1442436c
152e3993
hex222d2c

2239788 has 12 divisors (see below), whose sum is σ = 5226200. Its totient is φ = 746592.

The previous prime is 2239759. The next prime is 2239793. The reversal of 2239788 is 8879322.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93313 + ... + 93336.

22239788 is an apocalyptic number.

It is an amenable number.

2239788 is an abundant number, since it is smaller than the sum of its proper divisors (2986412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2239788 is a wasteful number, since it uses less digits than its factorization.

2239788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186656 (or 186654 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 2239788 is about 1496.5921288046. The cubic root of 2239788 is about 130.8385245032.

It can be divided in two parts, 223 and 9788, that added together give a triangular number (10011 = T141).

The spelling of 2239788 in words is "two million, two hundred thirty-nine thousand, seven hundred eighty-eight".

Divisors: 1 2 3 4 6 12 186649 373298 559947 746596 1119894 2239788