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20592401 = 31664271
BaseRepresentation
bin100111010001…
…1011100010001
31102202012110112
41032203130101
520232424101
62013211105
7340014104
oct116433421
942665415
1020592401
1110695415
126a90a95
13435cc6b
142a4073b
151c1b6bb
hex13a3711

20592401 has 4 divisors (see below), whose sum is σ = 21256704. Its totient is φ = 19928100.

The previous prime is 20592391. The next prime is 20592413. The reversal of 20592401 is 10429502.

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 not a de Polignac number, because 20592401 - 210 = 20591377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20592431) 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, 332105 + ... + 332166.

It is an arithmetic number, because the mean of its divisors is an integer number (5314176).

Almost surely, 220592401 is an apocalyptic number.

It is an amenable number.

20592401 is a deficient number, since it is larger than the sum of its proper divisors (664303).

20592401 is an equidigital number, since it uses as much as digits as its factorization.

20592401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664302.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 20592401 is about 4537.8850800786. The cubic root of 20592401 is about 274.0957672237.

The spelling of 20592401 in words is "twenty million, five hundred ninety-two thousand, four hundred one".

Divisors: 1 31 664271 20592401