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222130340 = 22513979903
BaseRepresentation
bin11010011110101…
…11000010100100
3120110222101112122
431033113002210
5423331132330
634013005112
75335035215
oct1517270244
9513871478
10222130340
111044288a3
1262483798
1337035293
142170340c
151477b5e5
hexd3d70a4

222130340 has 24 divisors (see below), whose sum is σ = 469835520. Its totient is φ = 88211808.

The previous prime is 222130267. The next prime is 222130361. The reversal of 222130340 is 43031222.

222130340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37172 + ... + 42731.

It is an arithmetic number, because the mean of its divisors is an integer number (19576480).

Almost surely, 2222130340 is an apocalyptic number.

222130340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222130340 is an abundant number, since it is smaller than the sum of its proper divisors (247705180).

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

222130340 is a wasteful number, since it uses less digits than its factorization.

222130340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80051 (or 80049 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 222130340 is about 14904.0377079502. The cubic root of 222130340 is about 605.6233722301.

Adding to 222130340 its reverse (43031222), we get a palindrome (265161562).

The spelling of 222130340 in words is "two hundred twenty-two million, one hundred thirty thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 139 278 556 695 1390 2780 79903 159806 319612 399515 799030 1598060 11106517 22213034 44426068 55532585 111065170 222130340