Search a number
-
+
20796601 = 72970943
BaseRepresentation
bin100111101010…
…1010010111001
31110010120120111
41033111102321
520310442401
62021424321
7341524330
oct117252271
943116514
1020796601
1110814881
126b6b0a1
134401ba7
142a94d17
151c5be51
hex13d54b9

20796601 has 4 divisors (see below), whose sum is σ = 23767552. Its totient is φ = 17825652.

The previous prime is 20796551. The next prime is 20796619. The reversal of 20796601 is 10669702.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10669702 = 25334851.

It is a cyclic number.

It is not a de Polignac number, because 20796601 - 217 = 20665529 is a prime.

It is a super-2 number, since 2×207966012 = 864997226306402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20796641) 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, 1485465 + ... + 1485478.

It is an arithmetic number, because the mean of its divisors is an integer number (5941888).

Almost surely, 220796601 is an apocalyptic number.

It is an amenable number.

20796601 is a deficient number, since it is larger than the sum of its proper divisors (2970951).

20796601 is an equidigital number, since it uses as much as digits as its factorization.

20796601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2970950.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 20796601 is about 4560.3290451458. The cubic root of 20796601 is about 274.9987922812.

The spelling of 20796601 in words is "twenty million, seven hundred ninety-six thousand, six hundred one".

Divisors: 1 7 2970943 20796601