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52244261 = 186727983
BaseRepresentation
bin1100011101001…
…0111100100101
310122022021122122
43013102330211
5101333304021
65103435325
71203032426
oct307227445
9118267578
1052244261
1127543983
12155b5b45
13aa92a84
146d1d64d
1548bebab
hex31d2f25

52244261 has 4 divisors (see below), whose sum is σ = 52274112. Its totient is φ = 52214412.

The previous prime is 52244251. The next prime is 52244279. The reversal of 52244261 is 16244225.

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 a de Polignac number, because none of the positive numbers 2k-52244261 is a prime.

It is a super-2 number, since 2×522442612 = 5458925614872242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52244261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52244251) 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, 12125 + ... + 15858.

It is an arithmetic number, because the mean of its divisors is an integer number (13068528).

Almost surely, 252244261 is an apocalyptic number.

It is an amenable number.

52244261 is a deficient number, since it is larger than the sum of its proper divisors (29851).

52244261 is a wasteful number, since it uses less digits than its factorization.

52244261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29850.

The product of its digits is 3840, while the sum is 26.

The square root of 52244261 is about 7228.0191615684. The cubic root of 52244261 is about 373.8346304849.

Adding to 52244261 its reverse (16244225), we get a palindrome (68488486).

The spelling of 52244261 in words is "fifty-two million, two hundred forty-four thousand, two hundred sixty-one".

Divisors: 1 1867 27983 52244261