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20022031310 = 252851702281
BaseRepresentation
bin10010101001011001…
…111111001111001110
31220200100222120112012
4102221121333033032
5312001120000220
613110433341222
71306110313061
oct225131771716
956610876465
1020022031310
118544a07516
123a69407812
131b7111c808
14d7d1bc8d8
157c2b6dac5
hex4a967f3ce

20022031310 has 16 divisors (see below), whose sum is σ = 36052348752. Its totient is φ = 8005992000.

The previous prime is 20022031303. The next prime is 20022031313. The reversal of 20022031310 is 1313022002.

It is a happy number.

It is a super-2 number, since 2×200220313102 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022031313) 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, 322631 + ... + 379650.

It is an arithmetic number, because the mean of its divisors is an integer number (2253271797).

Almost surely, 220022031310 is an apocalyptic number.

20022031310 is a deficient number, since it is larger than the sum of its proper divisors (16030317442).

20022031310 is a wasteful number, since it uses less digits than its factorization.

20022031310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705139.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20022031310 its reverse (1313022002), we get a palindrome (21335053312).

The spelling of 20022031310 in words is "twenty billion, twenty-two million, thirty-one thousand, three hundred ten".

Divisors: 1 2 5 10 2851 5702 14255 28510 702281 1404562 3511405 7022810 2002203131 4004406262 10011015655 20022031310