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51772 = 227432
BaseRepresentation
bin1100101000111100
32122000111
430220330
53124042
61035404
7303640
oct145074
978014
1051772
1135996
1225b64
131a746
1414c20
1510517
hexca3c

51772 has 18 divisors (see below), whose sum is σ = 106008. Its totient is φ = 21672.

The previous prime is 51769. The next prime is 51787. The reversal of 51772 is 27715.

51772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1183 + ... + 1225.

251772 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 51772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53004).

51772 is an abundant number, since it is smaller than the sum of its proper divisors (54236).

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

51772 is a wasteful number, since it uses less digits than its factorization.

51772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 52 counting only the distinct ones).

The product of its digits is 490, while the sum is 22.

The square root of 51772 is about 227.5346127516. The cubic root of 51772 is about 37.2704795573.

The spelling of 51772 in words is "fifty-one thousand, seven hundred seventy-two".

Divisors: 1 2 4 7 14 28 43 86 172 301 602 1204 1849 3698 7396 12943 25886 51772