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20102031322 = 234728965463
BaseRepresentation
bin10010101110001011…
…001010011111011010
31220212221111222220121
4102232023022133122
5312132110000242
613122412143454
71311101306212
oct225613123732
956787458817
1020102031322
11858608872a
123a90167b8a
131b8487cbb9
14d89a85242
157c9bc2667
hex4ae2ca7da

20102031322 has 8 divisors (see below), whose sum is σ = 30239944416. Its totient is φ = 10022049852.

The previous prime is 20102031319. The next prime is 20102031337. The reversal of 20102031322 is 22313020102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20102031296 and 20102031305.

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 3 ways as a sum of consecutive naturals, for example, 14482038 + ... + 14483425.

It is an arithmetic number, because the mean of its divisors is an integer number (3779993052).

Almost surely, 220102031322 is an apocalyptic number.

20102031322 is a deficient number, since it is larger than the sum of its proper divisors (10137913094).

20102031322 is a wasteful number, since it uses less digits than its factorization.

20102031322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28965812.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20102031322 its reverse (22313020102), we get a palindrome (42415051424).

The spelling of 20102031322 in words is "twenty billion, one hundred two million, thirty-one thousand, three hundred twenty-two".

Divisors: 1 2 347 694 28965463 57930926 10051015661 20102031322