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2020506 = 232391409
BaseRepresentation
bin111101101010010011010
310210122121120
413231102122
51004124011
6111150110
723113455
oct7552232
93718546
102020506
111160044
12815336
13559887
143a849c
1529da06
hex1ed49a

2020506 has 16 divisors (see below), whose sum is σ = 4060800. Its totient is φ = 670208.

The previous prime is 2020493. The next prime is 2020507. The reversal of 2020506 is 6050202.

It is not an unprimeable number, because it can be changed into a prime (2020507) 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, 730 + ... + 2138.

It is an arithmetic number, because the mean of its divisors is an integer number (253800).

22020506 is an apocalyptic number.

2020506 is an abundant number, since it is smaller than the sum of its proper divisors (2040294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2020506 is a wasteful number, since it uses less digits than its factorization.

2020506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2020506 is about 1421.4450393877. The cubic root of 2020506 is about 126.4212406888.

Adding to 2020506 its reverse (6050202), we get a palindrome (8070708).

The spelling of 2020506 in words is "two million, twenty thousand, five hundred six".

Divisors: 1 2 3 6 239 478 717 1409 1434 2818 4227 8454 336751 673502 1010253 2020506