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52417961 = 66179301
BaseRepresentation
bin1100011111110…
…1010110101001
310122122002220222
43013331112221
5101404333321
65111255425
71204355021
oct307752651
9118562828
1052417961
1127652432
121567a575
13ab23b5b
146d66a81
1549063ab
hex31fd5a9

52417961 has 4 divisors (see below), whose sum is σ = 52497924. Its totient is φ = 52338000.

The previous prime is 52417933. The next prime is 52417969. The reversal of 52417961 is 16971425.

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 41731600 + 10686361 = 6460^2 + 3269^2 .

It is a cyclic number.

It is not a de Polignac number, because 52417961 - 210 = 52416937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52417969) 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, 38990 + ... + 40311.

It is an arithmetic number, because the mean of its divisors is an integer number (13124481).

Almost surely, 252417961 is an apocalyptic number.

It is an amenable number.

52417961 is a deficient number, since it is larger than the sum of its proper divisors (79963).

52417961 is an equidigital number, since it uses as much as digits as its factorization.

52417961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79962.

The product of its digits is 15120, while the sum is 35.

The square root of 52417961 is about 7240.0249308963. The cubic root of 52417961 is about 374.2484765357.

The spelling of 52417961 in words is "fifty-two million, four hundred seventeen thousand, nine hundred sixty-one".

Divisors: 1 661 79301 52417961