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52122061 = 137380453
BaseRepresentation
bin1100011011010…
…1000111001101
310122002002000201
43012311013031
5101320401221
65101053501
71202013235
oct306650715
9118062021
1052122061
1127470092
1215557291
13aa4c274
146ccacc5
154898891
hex31b51cd

52122061 has 4 divisors (see below), whose sum is σ = 52502652. Its totient is φ = 51741472.

The previous prime is 52122053. The next prime is 52122097. The reversal of 52122061 is 16022125.

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 29975625 + 22146436 = 5475^2 + 4706^2 .

It is a cyclic number.

It is not a de Polignac number, because 52122061 - 23 = 52122053 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 (52122001) 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, 190090 + ... + 190363.

It is an arithmetic number, because the mean of its divisors is an integer number (13125663).

Almost surely, 252122061 is an apocalyptic number.

It is an amenable number.

52122061 is a deficient number, since it is larger than the sum of its proper divisors (380591).

52122061 is a wasteful number, since it uses less digits than its factorization.

52122061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380590.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 52122061 is about 7219.5609977339. The cubic root of 52122061 is about 373.5429349333.

Adding to 52122061 its reverse (16022125), we get a palindrome (68144186).

The spelling of 52122061 in words is "fifty-two million, one hundred twenty-two thousand, sixty-one".

Divisors: 1 137 380453 52122061