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52243071 = 3107162751
BaseRepresentation
bin1100011101001…
…0101001111111
310122022020000120
43013102221333
5101333234241
65103430023
71203026106
oct307225177
9118266016
1052243071
1127542aa1
12155b5313
13aa9237a
146d1d03d
1548be666
hex31d2a7f

52243071 has 8 divisors (see below), whose sum is σ = 70308864. Its totient is φ = 34503000.

The previous prime is 52243069. The next prime is 52243073. The reversal of 52243071 is 17034225.

It is an interprime number because it is at equal distance from previous prime (52243069) and next prime (52243073).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52243071 - 21 = 52243069 is a prime.

It is a super-2 number, since 2×522430712 = 5458676935022082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52243073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81055 + ... + 81696.

It is an arithmetic number, because the mean of its divisors is an integer number (8788608).

Almost surely, 252243071 is an apocalyptic number.

52243071 is a deficient number, since it is larger than the sum of its proper divisors (18065793).

52243071 is a wasteful number, since it uses less digits than its factorization.

52243071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162861.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 52243071 is about 7227.9368425575. The cubic root of 52243071 is about 373.8317921087.

Adding to 52243071 its reverse (17034225), we get a palindrome (69277296).

The spelling of 52243071 in words is "fifty-two million, two hundred forty-three thousand, seventy-one".

Divisors: 1 3 107 321 162751 488253 17414357 52243071