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20711050 = 252414221
BaseRepresentation
bin100111100000…
…0011010001010
31102222020012221
41033000122022
520300223200
62015524254
7341020033
oct117003212
942866187
1020711050
1110766578
126b2968a
1343a1c79
142a71a8a
151c4191a
hex13c068a

20711050 has 12 divisors (see below), whose sum is σ = 38522646. Its totient is φ = 8284400.

The previous prime is 20711029. The next prime is 20711051. The reversal of 20711050 is 5011702.

It can be written as a sum of positive squares in 3 ways, for example, as 10361961 + 10349089 = 3219^2 + 3217^2 .

It is not an unprimeable number, because it can be changed into a prime (20711051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 207061 + ... + 207160.

Almost surely, 220711050 is an apocalyptic number.

20711050 is a deficient number, since it is larger than the sum of its proper divisors (17811596).

20711050 is a wasteful number, since it uses less digits than its factorization.

20711050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414233 (or 414228 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 20711050 is about 4550.9394634515. The cubic root of 20711050 is about 274.6211864114.

Adding to 20711050 its reverse (5011702), we get a palindrome (25722752).

The spelling of 20711050 in words is "twenty million, seven hundred eleven thousand, fifty".

Divisors: 1 2 5 10 25 50 414221 828442 2071105 4142210 10355525 20711050