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610052521 = 1361769297
BaseRepresentation
bin100100010111001…
…010100110101001
31120111220212201211
4210113022212221
52222133140041
6140311313121
721055234531
oct4427124651
91514825654
10610052521
112933a4541
1215037b7a1
1399508330
145b0424c1
1538856481
hex245ca9a9

610052521 has 8 divisors (see below), whose sum is σ = 667750664. Its totient is φ = 553893120.

The previous prime is 610052479. The next prime is 610052537. The reversal of 610052521 is 125250016.

It can be written as a sum of positive squares in 4 ways, for example, as 8037225 + 602015296 = 2835^2 + 24536^2 .

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 610052521 - 213 = 610044329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 610052492 and 610052501.

It is not an unprimeable number, because it can be changed into a prime (610052561) 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, 383856 + ... + 385441.

It is an arithmetic number, because the mean of its divisors is an integer number (83468833).

Almost surely, 2610052521 is an apocalyptic number.

610052521 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

610052521 is a deficient number, since it is larger than the sum of its proper divisors (57698143).

610052521 is a wasteful number, since it uses less digits than its factorization.

610052521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769371.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 610052521 is about 24699.2413041373. The cubic root of 610052521 is about 848.1169484082.

The spelling of 610052521 in words is "six hundred ten million, fifty-two thousand, five hundred twenty-one".

Divisors: 1 13 61 793 769297 10000861 46927117 610052521