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20200031103 = 37961906243
BaseRepresentation
bin10010110100000001…
…000000001101111111
31221010202220220100010
4102310001000031333
5312332201443403
613140232434303
71313401300650
oct226401001577
957122826303
1020200031103
11862643338a
123ab8b48993
131b9bc73135
14d98ab5527
157d35ce603
hex4b404037f

20200031103 has 8 divisors (see below), whose sum is σ = 30780999808. Its totient is φ = 11542874904.

The previous prime is 20200031099. The next prime is 20200031107. The reversal of 20200031103 is 30113000202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20200031099) and next prime (20200031107).

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

It is not a de Polignac number, because 20200031103 - 22 = 20200031099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200031107) 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, 480953101 + ... + 480953142.

It is an arithmetic number, because the mean of its divisors is an integer number (3847624976).

Almost surely, 220200031103 is an apocalyptic number.

20200031103 is a deficient number, since it is larger than the sum of its proper divisors (10580968705).

20200031103 is an equidigital number, since it uses as much as digits as its factorization.

20200031103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961906253.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20200031103 its reverse (30113000202), we get a palindrome (50313031305).

The spelling of 20200031103 in words is "twenty billion, two hundred million, thirty-one thousand, one hundred three".

Divisors: 1 3 7 21 961906243 2885718729 6733343701 20200031103