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2812228 = 221937003
BaseRepresentation
bin1010101110100101000100
312021212122121
422232211010
51204442403
6140135324
732621626
oct12564504
95255577
102812228
111650961
12b37544
13776053
14532c16
153a83bd
hex2ae944

2812228 has 12 divisors (see below), whose sum is σ = 5180560. Its totient is φ = 1332072.

The previous prime is 2812223. The next prime is 2812237. The reversal of 2812228 is 8222182.

It is a hoax number, since the sum of its digits (25) 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 (2812223) 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, 18426 + ... + 18577.

22812228 is an apocalyptic number.

It is an amenable number.

2812228 is a deficient number, since it is larger than the sum of its proper divisors (2368332).

2812228 is a wasteful number, since it uses less digits than its factorization.

2812228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37026 (or 37024 counting only the distinct ones).

The product of its digits is 1024, while the sum is 25.

The square root of 2812228 is about 1676.9698864321. The cubic root of 2812228 is about 141.1508537535.

The spelling of 2812228 in words is "two million, eight hundred twelve thousand, two hundred twenty-eight".

Divisors: 1 2 4 19 38 76 37003 74006 148012 703057 1406114 2812228