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61252665 = 354083511
BaseRepresentation
bin1110100110101…
…0010000111001
311021020221212020
43221222100321
5111140041130
610024505053
71342432125
oct351522071
9137227766
1061252665
1131637041
121861b189
13c8c81a6
1481c6585
15559de10
hex3a6a439

61252665 has 8 divisors (see below), whose sum is σ = 98004288. Its totient is φ = 32668080.

The previous prime is 61252663. The next prime is 61252693. The reversal of 61252665 is 56625216.

It is a happy number.

61252665 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 61252665 - 21 = 61252663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61252663) 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, 2041741 + ... + 2041770.

It is an arithmetic number, because the mean of its divisors is an integer number (12250536).

Almost surely, 261252665 is an apocalyptic number.

It is an amenable number.

61252665 is a deficient number, since it is larger than the sum of its proper divisors (36751623).

61252665 is a wasteful number, since it uses less digits than its factorization.

61252665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4083519.

The product of its digits is 21600, while the sum is 33.

The square root of 61252665 is about 7826.4081800019. The cubic root of 61252665 is about 394.1924751211.

The spelling of 61252665 in words is "sixty-one million, two hundred fifty-two thousand, six hundred sixty-five".

Divisors: 1 3 5 15 4083511 12250533 20417555 61252665