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20772420001 = 47967457049
BaseRepresentation
bin10011010110001000…
…011111100110100001
31222121122222021021221
4103112020133212201
5320020214420001
613313121015041
71333521441154
oct232610374641
958548867257
1020772420001
11889a542663
124038784481
131c607221a8
141010b11c9b
158189961a1
hex4d621f9a1

20772420001 has 8 divisors (see below), whose sum is σ = 21236371200. Its totient is φ = 20309384928.

The previous prime is 20772419999. The next prime is 20772420013. The reversal of 20772420001 is 10002427702.

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

It is a cyclic number.

It is not a de Polignac number, because 20772420001 - 21 = 20772419999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20772420061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183076 + ... + 273973.

It is an arithmetic number, because the mean of its divisors is an integer number (2654546400).

Almost surely, 220772420001 is an apocalyptic number.

It is an amenable number.

20772420001 is a deficient number, since it is larger than the sum of its proper divisors (463951199).

20772420001 is an equidigital number, since it uses as much as digits as its factorization.

20772420001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458063.

The product of its (nonzero) digits is 1568, while the sum is 25.

Adding to 20772420001 its reverse (10002427702), we get a palindrome (30774847703).

The spelling of 20772420001 in words is "twenty billion, seven hundred seventy-two million, four hundred twenty thousand, one".

Divisors: 1 47 967 45449 457049 21481303 441966383 20772420001