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52100761 = 107486923
BaseRepresentation
bin1100011010111…
…1111010011001
310122000222210211
43012233322121
5101314211021
65100411121
71201564156
oct306577231
9118028724
1052100761
1127456089
1215546aa1
13aa4266b
146cc322d
1548923e1
hex31afe99

52100761 has 4 divisors (see below), whose sum is σ = 52587792. Its totient is φ = 51613732.

The previous prime is 52100747. The next prime is 52100777. The reversal of 52100761 is 16700125.

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 52100761 - 25 = 52100729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52100701) 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, 243355 + ... + 243568.

It is an arithmetic number, because the mean of its divisors is an integer number (13146948).

Almost surely, 252100761 is an apocalyptic number.

It is an amenable number.

52100761 is a deficient number, since it is larger than the sum of its proper divisors (487031).

52100761 is a wasteful number, since it uses less digits than its factorization.

52100761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487030.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 52100761 is about 7218.0856880478. The cubic root of 52100761 is about 373.4920444630.

Adding to 52100761 its reverse (16700125), we get a palindrome (68800886).

The spelling of 52100761 in words is "fifty-two million, one hundred thousand, seven hundred sixty-one".

Divisors: 1 107 486923 52100761