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52638141 = 317546047
BaseRepresentation
bin1100100011001…
…1000110111101
310200001021221210
43020303012331
5101433410031
65120115033
71206262653
oct310630675
9120037853
1052638141
11277928a6
1215765a79
13aba013a
146dc2dd3
15494b746
hex32331bd

52638141 has 4 divisors (see below), whose sum is σ = 70184192. Its totient is φ = 35092092.

The previous prime is 52638139. The next prime is 52638143. The reversal of 52638141 is 14183625.

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 an interprime number because it is at equal distance from previous prime (52638139) and next prime (52638143).

It is not a de Polignac number, because 52638141 - 21 = 52638139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52638099 and 52638108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52638143) 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, 8773021 + ... + 8773026.

It is an arithmetic number, because the mean of its divisors is an integer number (17546048).

Almost surely, 252638141 is an apocalyptic number.

It is an amenable number.

52638141 is a deficient number, since it is larger than the sum of its proper divisors (17546051).

52638141 is a wasteful number, since it uses less digits than its factorization.

52638141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17546050.

The product of its digits is 5760, while the sum is 30.

The square root of 52638141 is about 7255.2147452712. The cubic root of 52638141 is about 374.7717508789.

The spelling of 52638141 in words is "fifty-two million, six hundred thirty-eight thousand, one hundred forty-one".

Divisors: 1 3 17546047 52638141