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2223223225 = 52540716447
BaseRepresentation
bin1000010010000011…
…1011000110111001
312201221101102220221
42010200323012321
514023121120400
61004335220041
7106044041236
oct20440730671
95657342827
102223223225
11a40a51573
12520677621
132957a2c02
141713a478d
15d02a7c1a
hex8483b1b9

2223223225 has 12 divisors (see below), whose sum is σ = 2757474304. Its totient is φ = 1778141520.

The previous prime is 2223223207. The next prime is 2223223267. The reversal of 2223223225 is 5223223222.

It is not a de Polignac number, because 2223223225 - 29 = 2223222713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2223223225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126952 + ... + 143398.

Almost surely, 22223223225 is an apocalyptic number.

2223223225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2223223225 is a deficient number, since it is larger than the sum of its proper divisors (534251079).

2223223225 is a wasteful number, since it uses less digits than its factorization.

2223223225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21864 (or 21859 counting only the distinct ones).

The product of its digits is 5760, while the sum is 25.

The square root of 2223223225 is about 47151.0681215177. The cubic root of 2223223225 is about 1305.1517906457.

Adding to 2223223225 its reverse (5223223222), we get a palindrome (7446446447).

The spelling of 2223223225 in words is "two billion, two hundred twenty-three million, two hundred twenty-three thousand, two hundred twenty-five".

Divisors: 1 5 25 5407 16447 27035 82235 135175 411175 88928929 444644645 2223223225