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222972 = 223171093
BaseRepresentation
bin110110011011111100
3102022212020
4312123330
524113342
64440140
71616031
oct663374
9368766
10222972
11142582
12a9050
137a649
145b388
15460ec
hex366fc

222972 has 24 divisors (see below), whose sum is σ = 551376. Its totient is φ = 69888.

The previous prime is 222967. The next prime is 222977. The reversal of 222972 is 279222.

It is an interprime number because it is at equal distance from previous prime (222967) and next prime (222977).

It is a d-powerful number, because it can be written as 2 + 25 + 95 + 215 + 72 + 217 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222977) 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, 343 + ... + 750.

It is an arithmetic number, because the mean of its divisors is an integer number (22974).

2222972 is an apocalyptic number.

It is an amenable number.

222972 is an abundant number, since it is smaller than the sum of its proper divisors (328404).

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

222972 is a wasteful number, since it uses less digits than its factorization.

222972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117 (or 1115 counting only the distinct ones).

The product of its digits is 1008, while the sum is 24.

The square root of 222972 is about 472.1991105455. The cubic root of 222972 is about 60.6387317887.

The spelling of 222972 in words is "two hundred twenty-two thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 1093 2186 3279 4372 6558 13116 18581 37162 55743 74324 111486 222972