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52250431 = 2910117839
BaseRepresentation
bin1100011101010…
…0011100111111
310122022121010011
43013110130333
5101334003211
65103524051
71203056422
oct307243477
9118277104
1052250431
1127548582
12155b9627
13aa9581c
146d219b9
1548c1921
hex31d473f

52250431 has 8 divisors (see below), whose sum is σ = 54590400. Its totient is φ = 49946400.

The previous prime is 52250423. The next prime is 52250447. The reversal of 52250431 is 13405225.

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

It is a cyclic number.

It is not a de Polignac number, because 52250431 - 23 = 52250423 is a prime.

It is a super-2 number, since 2×522504312 = 5460215079371522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52250491) 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, 5991 + ... + 11848.

It is an arithmetic number, because the mean of its divisors is an integer number (6823800).

Almost surely, 252250431 is an apocalyptic number.

52250431 is a deficient number, since it is larger than the sum of its proper divisors (2339969).

52250431 is a wasteful number, since it uses less digits than its factorization.

52250431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17969.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 52250431 is about 7228.4459602324. The cubic root of 52250431 is about 373.8493464162.

Adding to 52250431 its reverse (13405225), we get a palindrome (65655656).

The spelling of 52250431 in words is "fifty-two million, two hundred fifty thousand, four hundred thirty-one".

Divisors: 1 29 101 2929 17839 517331 1801739 52250431