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20588049 = 326137501
BaseRepresentation
bin100111010001…
…0011000010001
31102201222111100
41032202120101
520232304144
62013135013
7336665316
oct116423021
942658440
1020588049
1110692119
126a8a469
13435aca1
142a3cd0d
151c1a269
hex13a2611

20588049 has 12 divisors (see below), whose sum is σ = 30226612. Its totient is φ = 13500000.

The previous prime is 20588047. The next prime is 20588053. The reversal of 20588049 is 94088502.

It can be written as a sum of positive squares in 2 ways, for example, as 3448449 + 17139600 = 1857^2 + 4140^2 .

It is not a de Polignac number, because 20588049 - 21 = 20588047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20588047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18202 + ... + 19299.

Almost surely, 220588049 is an apocalyptic number.

It is an amenable number.

20588049 is a deficient number, since it is larger than the sum of its proper divisors (9638563).

20588049 is a wasteful number, since it uses less digits than its factorization.

20588049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37568 (or 37565 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 20588049 is about 4537.4055362068. The cubic root of 20588049 is about 274.0764567214.

The spelling of 20588049 in words is "twenty million, five hundred eighty-eight thousand, forty-nine".

Divisors: 1 3 9 61 183 549 37501 112503 337509 2287561 6862683 20588049