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220140222 = 23231595219
BaseRepresentation
bin11010001111100…
…01001010111110
3120100020021121120
431013301022332
5422323441342
633502211410
75312106141
oct1507611276
9510207546
10220140222
11103299675
1261883b66
13367b94b3
1421346058
15144d6aec
hexd1f12be

220140222 has 16 divisors (see below), whose sum is σ = 459423360. Its totient is φ = 70189592.

The previous prime is 220140209. The next prime is 220140223. The reversal of 220140222 is 222041022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220140223) 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, 797472 + ... + 797747.

It is an arithmetic number, because the mean of its divisors is an integer number (28713960).

Almost surely, 2220140222 is an apocalyptic number.

220140222 is an abundant number, since it is smaller than the sum of its proper divisors (239283138).

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

220140222 is a wasteful number, since it uses less digits than its factorization.

220140222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595247.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 220140222 is about 14837.1231038905. The cubic root of 220140222 is about 603.8093030578.

Adding to 220140222 its reverse (222041022), we get a palindrome (442181244).

The spelling of 220140222 in words is "two hundred twenty million, one hundred forty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 23 46 69 138 1595219 3190438 4785657 9571314 36690037 73380074 110070111 220140222