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61253017 = 7192915881
BaseRepresentation
bin1110100110101…
…0010110011001
311021020222100021
43221222112121
5111140044032
610024510441
71342433140
oct351522631
9137228307
1061253017
1131637331
121861b421
13c8c83b7
1481c6757
15559e097
hex3a6a599

61253017 has 16 divisors (see below), whose sum is σ = 76233600. Its totient is φ = 48021120.

The previous prime is 61253011. The next prime is 61253039. The reversal of 61253017 is 71035216.

It is not a de Polignac number, because 61253017 - 27 = 61252889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61252982 and 61253000.

It is not an unprimeable number, because it can be changed into a prime (61253011) 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, 4084 + ... + 11797.

It is an arithmetic number, because the mean of its divisors is an integer number (4764600).

Almost surely, 261253017 is an apocalyptic number.

It is an amenable number.

61253017 is a deficient number, since it is larger than the sum of its proper divisors (14980583).

61253017 is a wasteful number, since it uses less digits than its factorization.

61253017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15936.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 61253017 is about 7826.4306679354. The cubic root of 61253017 is about 394.1932302202.

The spelling of 61253017 in words is "sixty-one million, two hundred fifty-three thousand, seventeen".

Divisors: 1 7 19 29 133 203 551 3857 15881 111167 301739 460549 2112173 3223843 8750431 61253017