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52127101 = 134009777
BaseRepresentation
bin1100011011011…
…0010101111101
310122002022221101
43012312111331
5101321031401
65101133101
71202034025
oct306662575
9118068841
1052127101
1127473954
121555a191
13aa51650
146ccca85
15489a101
hex31b657d

52127101 has 4 divisors (see below), whose sum is σ = 56136892. Its totient is φ = 48117312.

The previous prime is 52127099. The next prime is 52127107. The reversal of 52127101 is 10172125.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34234201 + 17892900 = 5851^2 + 4230^2 .

It is a cyclic number.

It is not a de Polignac number, because 52127101 - 21 = 52127099 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 (52127107) 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, 2004876 + ... + 2004901.

It is an arithmetic number, because the mean of its divisors is an integer number (14034223).

Almost surely, 252127101 is an apocalyptic number.

It is an amenable number.

52127101 is a deficient number, since it is larger than the sum of its proper divisors (4009791).

52127101 is a wasteful number, since it uses less digits than its factorization.

52127101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4009790.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 52127101 is about 7219.9100409908. The cubic root of 52127101 is about 373.5549745935.

Adding to 52127101 its reverse (10172125), we get a palindrome (62299226).

The spelling of 52127101 in words is "fifty-two million, one hundred twenty-seven thousand, one hundred one".

Divisors: 1 13 4009777 52127101