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61253169 = 3191074617
BaseRepresentation
bin1110100110101…
…0011000110001
311021020222112220
43221222120301
5111140100134
610024511253
71342433445
oct351523061
9137228486
1061253169
113163745a
121861b529
13c8c84a3
1481c6825
15559e149
hex3a6a631

61253169 has 8 divisors (see below), whose sum is σ = 85969440. Its totient is φ = 38686176.

The previous prime is 61253147. The next prime is 61253177. The reversal of 61253169 is 96135216.

It is a happy number.

61253169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 61253169 - 219 = 60728881 is a prime.

It is a super-2 number, since 2×612531692 = 7503901425085122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61257169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537252 + ... + 537365.

It is an arithmetic number, because the mean of its divisors is an integer number (10746180).

Almost surely, 261253169 is an apocalyptic number.

It is an amenable number.

61253169 is a deficient number, since it is larger than the sum of its proper divisors (24716271).

61253169 is a wasteful number, since it uses less digits than its factorization.

61253169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074639.

The product of its digits is 9720, while the sum is 33.

The square root of 61253169 is about 7826.4403786140. The cubic root of 61253169 is about 394.1935562848.

The spelling of 61253169 in words is "sixty-one million, two hundred fifty-three thousand, one hundred sixty-nine".

Divisors: 1 3 19 57 1074617 3223851 20417723 61253169