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222030231 = 3106969233
BaseRepresentation
bin11010011101111…
…10100110010111
3120110210022012220
431032332212113
5423314431411
634010513423
75334140313
oct1516764627
9513708186
10222030231
1110436a665
1262435873
1336ccb847
14216b8b43
151475bb06
hexd3be997

222030231 has 8 divisors (see below), whose sum is σ = 296321520. Its totient is φ = 147879552.

The previous prime is 222030223. The next prime is 222030233. The reversal of 222030231 is 132030222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222030231 - 23 = 222030223 is a prime.

It is a super-2 number, since 2×2220302312 = 98594846955826722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222030231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222030233) 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, 31410 + ... + 37823.

It is an arithmetic number, because the mean of its divisors is an integer number (37040190).

Almost surely, 2222030231 is an apocalyptic number.

222030231 is a deficient number, since it is larger than the sum of its proper divisors (74291289).

222030231 is a wasteful number, since it uses less digits than its factorization.

222030231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70305.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 222030231 is about 14900.6788771519. The cubic root of 222030231 is about 605.5323784163.

Adding to 222030231 its reverse (132030222), we get a palindrome (354060453).

Subtracting from 222030231 its reverse (132030222), we obtain a palindrome (90000009).

The spelling of 222030231 in words is "two hundred twenty-two million, thirty thousand, two hundred thirty-one".

Divisors: 1 3 1069 3207 69233 207699 74010077 222030231