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52523031 = 3112971773
BaseRepresentation
bin1100100001011…
…1000000010111
310122211110001110
43020113000113
5101421214111
65113430103
71205303241
oct310270027
9118743043
1052523031
1127714370
121570b333
13ab5c922
146d93091
1549275a6
hex3217017

52523031 has 32 divisors (see below), whose sum is σ = 80248320. Its totient is φ = 30262400.

The previous prime is 52523027. The next prime is 52523041. The reversal of 52523031 is 13032525.

It is a cyclic number.

It is not a de Polignac number, because 52523031 - 22 = 52523027 is a prime.

It is a super-2 number, since 2×525230312 = 5517337570853922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52522989 and 52523007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52523041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67561 + ... + 68333.

It is an arithmetic number, because the mean of its divisors is an integer number (2507760).

Almost surely, 252523031 is an apocalyptic number.

52523031 is a deficient number, since it is larger than the sum of its proper divisors (27725289).

52523031 is a wasteful number, since it uses less digits than its factorization.

52523031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 52523031 is about 7247.2774888230. The cubic root of 52523031 is about 374.4983657118.

Adding to 52523031 its reverse (13032525), we get a palindrome (65555556).

The spelling of 52523031 in words is "fifty-two million, five hundred twenty-three thousand, thirty-one".

Divisors: 1 3 11 29 33 71 87 213 319 773 781 957 2059 2319 2343 6177 8503 22417 22649 25509 54883 67251 67947 164649 246587 603713 739761 1591607 1811139 4774821 17507677 52523031