Search a number
-
+
20600672441 = 67307472723
BaseRepresentation
bin10011001011111001…
…010101000010111001
31222011200210120221012
4103023321111002321
5314142233004231
613244103523305
71326334553336
oct231371250271
958150716835
1020600672441
1188115a7128
123bab159535
131c33c7a60b
14dd5da598d
1580886ce2b
hex4cbe550b9

20600672441 has 4 divisors (see below), whose sum is σ = 20908145232. Its totient is φ = 20293199652.

The previous prime is 20600672429. The next prime is 20600672467. The reversal of 20600672441 is 14427600602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20600672441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20600672398 and 20600672407.

It is not an unprimeable number, because it can be changed into a prime (20600672041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153736295 + ... + 153736428.

It is an arithmetic number, because the mean of its divisors is an integer number (5227036308).

Almost surely, 220600672441 is an apocalyptic number.

It is an amenable number.

20600672441 is a deficient number, since it is larger than the sum of its proper divisors (307472791).

20600672441 is an equidigital number, since it uses as much as digits as its factorization.

20600672441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307472790.

The product of its (nonzero) digits is 16128, while the sum is 32.

The spelling of 20600672441 in words is "twenty billion, six hundred million, six hundred seventy-two thousand, four hundred forty-one".

Divisors: 1 67 307472723 20600672441