Search a number
-
+
2229868 = 222947409
BaseRepresentation
bin1000100000011001101100
311012021210201
420200121230
51032323433
6115443244
724645034
oct10403154
94167721
102229868
111293373
128b6524
13600c64
144208c4
152e0a7d
hex22066c

2229868 has 24 divisors (see below), whose sum is σ = 4132800. Its totient is φ = 1051008.

The previous prime is 2229863. The next prime is 2229883. The reversal of 2229868 is 8689222.

It is a super-2 number, since 2×22298682 = 9944622594848, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2229863) 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, 5248 + ... + 5656.

It is an arithmetic number, because the mean of its divisors is an integer number (172200).

22229868 is an apocalyptic number.

It is an amenable number.

2229868 is a deficient number, since it is larger than the sum of its proper divisors (1902932).

2229868 is a wasteful number, since it uses less digits than its factorization.

2229868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 487 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 2229868 is about 1493.2742547838. The cubic root of 2229868 is about 130.6450777651.

It can be divided in two parts, 22298 and 68, that added together give a triangular number (22366 = T211).

The spelling of 2229868 in words is "two million, two hundred twenty-nine thousand, eight hundred sixty-eight".

Divisors: 1 2 4 29 47 58 94 116 188 409 818 1363 1636 2726 5452 11861 19223 23722 38446 47444 76892 557467 1114934 2229868