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52089531 = 3132575197
BaseRepresentation
bin1100011010110…
…1001010111011
310122000102101220
43012231022323
5101313331111
65100243123
71201516344
oct306551273
9118012356
1052089531
11274486aa
12155404a3
13aa3a510
146cbd0cb
15488de06
hex31ad2bb

52089531 has 16 divisors (see below), whose sum is σ = 75100704. Its totient is φ = 31924224.

The previous prime is 52089523. The next prime is 52089551. The reversal of 52089531 is 13598025.

It is not a de Polignac number, because 52089531 - 23 = 52089523 is a prime.

It is a super-2 number, since 2×520895312 = 5426638479599922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52089492 and 52089501.

It is not an unprimeable number, because it can be changed into a prime (52089551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7425 + ... + 12621.

It is an arithmetic number, because the mean of its divisors is an integer number (4693794).

Almost surely, 252089531 is an apocalyptic number.

52089531 is a deficient number, since it is larger than the sum of its proper divisors (23011173).

52089531 is a wasteful number, since it uses less digits than its factorization.

52089531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5470.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 52089531 is about 7217.3077390395. The cubic root of 52089531 is about 373.4652078937.

The spelling of 52089531 in words is "fifty-two million, eighty-nine thousand, five hundred thirty-one".

Divisors: 1 3 13 39 257 771 3341 5197 10023 15591 67561 202683 1335629 4006887 17363177 52089531