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2031222230 = 25238831401
BaseRepresentation
bin111100100010001…
…1111110111010110
312020120002210001222
41321010133313112
513124443102410
6533320050342
7101223050462
oct17104376726
95216083058
102031222230
11952632364
124883039b2
13264a8975b
14153aa54a2
15bd4cd955
hex7911fdd6

2031222230 has 16 divisors (see below), whose sum is σ = 3815165664. Its totient is φ = 777163200.

The previous prime is 2031222187. The next prime is 2031222257. The reversal of 2031222230 is 322221302.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2031222199 and 2031222208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4415471 + ... + 4415930.

It is an arithmetic number, because the mean of its divisors is an integer number (238447854).

Almost surely, 22031222230 is an apocalyptic number.

2031222230 is a deficient number, since it is larger than the sum of its proper divisors (1783943434).

2031222230 is a wasteful number, since it uses less digits than its factorization.

2031222230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8831431.

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

The square root of 2031222230 is about 45069.0828617579. The cubic root of 2031222230 is about 1266.4434833773.

Adding to 2031222230 its reverse (322221302), we get a palindrome (2353443532).

The spelling of 2031222230 in words is "two billion, thirty-one million, two hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 23 46 115 230 8831401 17662802 44157005 88314010 203122223 406244446 1015611115 2031222230