Search a number
-
+
2223748 = 221573541
BaseRepresentation
bin1000011110111010000100
311011222102001
420132322010
51032124443
6115355044
724621142
oct10367204
94158361
102223748
11128980a
128b2a84
135cb237
1441c592
152ddd4d
hex21ee84

2223748 has 12 divisors (see below), whose sum is σ = 3917452. Its totient is φ = 1104480.

The previous prime is 2223743. The next prime is 2223757. The reversal of 2223748 is 8473222.

It can be written as a sum of positive squares in 2 ways, for example, as 788544 + 1435204 = 888^2 + 1198^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 2 + 213 + 221 + 36 + 76 + 42 + 8 .

It is not an unprimeable number, because it can be changed into a prime (2223743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1143 + ... + 2398.

22223748 is an apocalyptic number.

It is an amenable number.

2223748 is a deficient number, since it is larger than the sum of its proper divisors (1693704).

2223748 is a wasteful number, since it uses less digits than its factorization.

2223748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702 (or 3700 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 2223748 is about 1491.2236586106. The cubic root of 2223748 is about 130.5254472965.

The spelling of 2223748 in words is "two million, two hundred twenty-three thousand, seven hundred forty-eight".

Divisors: 1 2 4 157 314 628 3541 7082 14164 555937 1111874 2223748