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2028043013 = 4347163791
BaseRepresentation
bin111100011100001…
…0111101100000101
312020100010021000012
41320320113230011
513123134334023
6533124000005
7101154036563
oct17070275405
95210107005
102028043013
11950860807
12487230005
13264215669
141534b8a33
15bd0a1978
hex78e17b05

2028043013 has 4 divisors (see below), whose sum is σ = 2075206848. Its totient is φ = 1980879180.

The previous prime is 2028042977. The next prime is 2028043021. The reversal of 2028043013 is 3103408202.

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 2028043013 - 212 = 2028038917 is a prime.

It is a super-2 number, since 2×20280430132 = 8225916925156236338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2028043013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028043063) 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, 23581853 + ... + 23581938.

It is an arithmetic number, because the mean of its divisors is an integer number (518801712).

Almost surely, 22028043013 is an apocalyptic number.

It is an amenable number.

2028043013 is a deficient number, since it is larger than the sum of its proper divisors (47163835).

2028043013 is an equidigital number, since it uses as much as digits as its factorization.

2028043013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47163834.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2028043013 is about 45033.7985628572. The cubic root of 2028043013 is about 1265.7824033896.

The spelling of 2028043013 in words is "two billion, twenty-eight million, forty-three thousand, thirteen".

Divisors: 1 43 47163791 2028043013