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1050020051 = 8311126341
BaseRepresentation
bin111110100101100…
…000100011010011
32201011210112201112
4332211200203103
54122301120201
6252105323535
735010010643
oct7645404323
92634715645
101050020051
11499788673
122537965ab
13139701752
149d64c523
15622b20bb
hex3e9608d3

1050020051 has 4 divisors (see below), whose sum is σ = 1050154704. Its totient is φ = 1049885400.

The previous prime is 1050020021. The next prime is 1050020071. The reversal of 1050020051 is 1500200501.

1050020051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1500200501 = 1567195731.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1050020051 is a prime.

It is a super-2 number, since 2×10500200512 = 2205084215004085202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1050020021) 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, 54860 + ... + 71481.

It is an arithmetic number, because the mean of its divisors is an integer number (262538676).

Almost surely, 21050020051 is an apocalyptic number.

1050020051 is a deficient number, since it is larger than the sum of its proper divisors (134653).

1050020051 is an equidigital number, since it uses as much as digits as its factorization.

1050020051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134652.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 1050020051 is about 32404.0128842093. The cubic root of 1050020051 is about 1016.4028265398.

Adding to 1050020051 its reverse (1500200501), we get a palindrome (2550220552).

The spelling of 1050020051 in words is "one billion, fifty million, twenty thousand, fifty-one".

Divisors: 1 8311 126341 1050020051