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20764446701 = 23398390659
BaseRepresentation
bin10011010101101010…
…000100111111101101
31222121002222011222112
4103111222010333231
5320011144243301
613312234053405
71333363612325
oct232552047755
958532864875
1020764446701
118895a97159
124035b7a265
131c5bb8cc6b
14100da38285
15817e1d9bb
hex4d5a84fed

20764446701 has 8 divisors (see below), whose sum is σ = 20875008960. Its totient is φ = 20654068192.

The previous prime is 20764446653. The next prime is 20764446707. The reversal of 20764446701 is 10764446702.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20764446701 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 (20764446707) 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, 183710 + ... + 274368.

It is an arithmetic number, because the mean of its divisors is an integer number (2609376120).

Almost surely, 220764446701 is an apocalyptic number.

It is an amenable number.

20764446701 is a deficient number, since it is larger than the sum of its proper divisors (110562259).

20764446701 is an equidigital number, since it uses as much as digits as its factorization.

20764446701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91875.

The product of its (nonzero) digits is 225792, while the sum is 41.

Subtracting from 20764446701 its reverse (10764446702), we obtain a palindrome (9999999999).

The spelling of 20764446701 in words is "twenty billion, seven hundred sixty-four million, four hundred forty-six thousand, seven hundred one".

Divisors: 1 233 983 90659 229039 21123547 89117797 20764446701