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2020512 = 253131619
BaseRepresentation
bin111101101010010100000
310210122121210
413231102200
51004124022
6111150120
723113464
oct7552240
93718553
102020512
11116004a
12815340
13559890
143a84a4
1529da0c
hex1ed4a0

2020512 has 48 divisors (see below), whose sum is σ = 5715360. Its totient is φ = 621312.

The previous prime is 2020511. The next prime is 2020537. The reversal of 2020512 is 2150202.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (2020511) 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, 439 + ... + 2057.

It is an arithmetic number, because the mean of its divisors is an integer number (119070).

22020512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2020512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2857680).

2020512 is an abundant number, since it is smaller than the sum of its proper divisors (3694848).

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

2020512 is a wasteful number, since it uses less digits than its factorization.

2020512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645 (or 1637 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 2020512 is about 1421.4471499145. The cubic root of 2020512 is about 126.4213658269.

Adding to 2020512 its reverse (2150202), we get a palindrome (4170714).

The spelling of 2020512 in words is "two million, twenty thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 78 96 104 156 208 312 416 624 1248 1619 3238 4857 6476 9714 12952 19428 21047 25904 38856 42094 51808 63141 77712 84188 126282 155424 168376 252564 336752 505128 673504 1010256 2020512