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1800027053 = 11163638823
BaseRepresentation
bin110101101001010…
…0011101110101101
311122110001211220122
41223102203232231
512141301331203
6454340454325
762414656166
oct15322435655
94573054818
101800027053
11844082a70
124229aa3a5
13228bcc486
141310c276d
15a8061538
hex6b4a3bad

1800027053 has 4 divisors (see below), whose sum is σ = 1963665888. Its totient is φ = 1636388220.

The previous prime is 1800027049. The next prime is 1800027067. The reversal of 1800027053 is 3507200081.

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 1800027053 - 22 = 1800027049 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 (1800027083) 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, 81819401 + ... + 81819422.

It is an arithmetic number, because the mean of its divisors is an integer number (490916472).

Almost surely, 21800027053 is an apocalyptic number.

It is an amenable number.

1800027053 is a deficient number, since it is larger than the sum of its proper divisors (163638835).

1800027053 is a wasteful number, since it uses less digits than its factorization.

1800027053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163638834.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1800027053 is about 42426.7256926575. The cubic root of 1800027053 is about 1216.4464932253.

The spelling of 1800027053 in words is "one billion, eight hundred million, twenty-seven thousand, fifty-three".

Divisors: 1 11 163638823 1800027053