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20623643206 = 294603109001
BaseRepresentation
bin10011001101010000…
…111101001001000110
31222020022000121220021
4103031100331021012
5314214123040311
613250244125354
71330034034445
oct231520751106
958208017807
1020623643206
118823566431
123bb699685a
131c38960c9a
14dd9064d5c
1580a8a9171
hex4cd43d246

20623643206 has 8 divisors (see below), whose sum is σ = 30936075624. Its totient is φ = 10311618000.

The previous prime is 20623643153. The next prime is 20623643321. The reversal of 20623643206 is 60234632602.

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, 134706 + ... + 243706.

It is an arithmetic number, because the mean of its divisors is an integer number (3867009453).

Almost surely, 220623643206 is an apocalyptic number.

20623643206 is a deficient number, since it is larger than the sum of its proper divisors (10312432418).

20623643206 is a wasteful number, since it uses less digits than its factorization.

20623643206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203606.

The product of its (nonzero) digits is 62208, while the sum is 34.

The spelling of 20623643206 in words is "twenty billion, six hundred twenty-three million, six hundred forty-three thousand, two hundred six".

Divisors: 1 2 94603 109001 189206 218002 10311821603 20623643206