Search a number
-
+
2800050053 = 18671499759
BaseRepresentation
bin1010011011100101…
…0101111110000101
321020010210021120112
42212321111332011
521213303100203
61141502442405
7126250014143
oct24671257605
97203707515
102800050053
111207612059
12661893405
13358146c68
141c7c38593
15115c496d8
hexa6e55f85

2800050053 has 4 divisors (see below), whose sum is σ = 2801551680. Its totient is φ = 2798548428.

The previous prime is 2800050013. The next prime is 2800050067. The reversal of 2800050053 is 3500500082.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3500500082 = 21750250041.

It is a cyclic number.

It is not a de Polignac number, because 2800050053 - 210 = 2800049029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2800050013) 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, 748013 + ... + 751746.

It is an arithmetic number, because the mean of its divisors is an integer number (700387920).

Almost surely, 22800050053 is an apocalyptic number.

It is an amenable number.

2800050053 is a deficient number, since it is larger than the sum of its proper divisors (1501627).

2800050053 is a wasteful number, since it uses less digits than its factorization.

2800050053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501626.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2800050053 is about 52915.4991755724. The cubic root of 2800050053 is about 1409.4681448973.

The spelling of 2800050053 in words is "two billion, eight hundred million, fifty thousand, fifty-three".

Divisors: 1 1867 1499759 2800050053