Search a number
-
+
61246153 = 64499497
BaseRepresentation
bin1110100110100…
…0101011001001
311021020121221001
43221220223021
5111134334103
610024415001
71342404133
oct351505311
9137217831
1061246153
1131632161
1218617461
13c8c5237
1481c4053
15559c01d
hex3a68ac9

61246153 has 4 divisors (see below), whose sum is σ = 61262100. Its totient is φ = 61230208.

The previous prime is 61246127. The next prime is 61246181. The reversal of 61246153 is 35164216.

61246153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 31956409 + 29289744 = 5653^2 + 5412^2 .

It is a cyclic number.

It is not a de Polignac number, because 61246153 - 29 = 61245641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61241153) 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 3 ways as a sum of consecutive naturals, for example, 1701 + ... + 11197.

It is an arithmetic number, because the mean of its divisors is an integer number (15315525).

Almost surely, 261246153 is an apocalyptic number.

It is an amenable number.

61246153 is a deficient number, since it is larger than the sum of its proper divisors (15947).

61246153 is an equidigital number, since it uses as much as digits as its factorization.

61246153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15946.

The product of its digits is 4320, while the sum is 28.

The square root of 61246153 is about 7825.9921415754. The cubic root of 61246153 is about 394.1785052671.

The spelling of 61246153 in words is "sixty-one million, two hundred forty-six thousand, one hundred fifty-three".

Divisors: 1 6449 9497 61246153