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52190511 = 319915623
BaseRepresentation
bin1100011100010…
…1110100101111
310122012112220220
43013011310233
5101330044021
65102342423
71202416632
oct307056457
9118175826
1052190511
112750755a
121558aa13
13aa74479
146d07c19
1548adcc6
hex31c5d2f

52190511 has 8 divisors (see below), whose sum is σ = 73249920. Its totient is φ = 32962392.

The previous prime is 52190503. The next prime is 52190543. The reversal of 52190511 is 11509125.

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

It is not a de Polignac number, because 52190511 - 23 = 52190503 is a prime.

It is a super-2 number, since 2×521905112 = 5447698876882242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52190591) 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, 457755 + ... + 457868.

It is an arithmetic number, because the mean of its divisors is an integer number (9156240).

Almost surely, 252190511 is an apocalyptic number.

52190511 is a deficient number, since it is larger than the sum of its proper divisors (21059409).

52190511 is a wasteful number, since it uses less digits than its factorization.

52190511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915645.

The product of its (nonzero) digits is 450, while the sum is 24.

The square root of 52190511 is about 7224.3000352975. The cubic root of 52190511 is about 373.7063835039.

Adding to 52190511 its reverse (11509125), we get a palindrome (63699636).

The spelling of 52190511 in words is "fifty-two million, one hundred ninety thousand, five hundred eleven".

Divisors: 1 3 19 57 915623 2746869 17396837 52190511