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20312222102 = 217401583651
BaseRepresentation
bin10010111010101100…
…111110100110010110
31221102121000210110022
4102322230332212112
5313044412101402
613155321225142
71316233016264
oct227254764626
957377023408
1020312222102
1186837a1117
123b2a6321b2
131bb9294843
14da995b434
157dd3912a2
hex4bab3e996

20312222102 has 8 divisors (see below), whose sum is σ = 30470136312. Its totient is φ = 10155510000.

The previous prime is 20312222089. The next prime is 20312222111. The reversal of 20312222102 is 20122221302.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257024 + ... + 326627.

It is an arithmetic number, because the mean of its divisors is an integer number (3808767039).

Almost surely, 220312222102 is an apocalyptic number.

20312222102 is a deficient number, since it is larger than the sum of its proper divisors (10157914210).

20312222102 is a wasteful number, since it uses less digits than its factorization.

20312222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601054.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20312222102 its reverse (20122221302), we get a palindrome (40434443404).

The spelling of 20312222102 in words is "twenty billion, three hundred twelve million, two hundred twenty-two thousand, one hundred two".

Divisors: 1 2 17401 34802 583651 1167302 10156111051 20312222102