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61790241 = 320596747
BaseRepresentation
bin1110101110110…
…1100000100001
311022021021021110
43223231200201
5111304241431
610044213533
71350131322
oct353554041
9138237243
1061790241
1131973a17
121883a2a9
13ca55a96
1482c6449
155658346
hex3aed821

61790241 has 4 divisors (see below), whose sum is σ = 82386992. Its totient is φ = 41193492.

The previous prime is 61790233. The next prime is 61790243. The reversal of 61790241 is 14209716.

It is a happy number.

61790241 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 Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 61790241 - 23 = 61790233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61790199 and 61790208.

It is not an unprimeable number, because it can be changed into a prime (61790243) 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, 10298371 + ... + 10298376.

It is an arithmetic number, because the mean of its divisors is an integer number (20596748).

Almost surely, 261790241 is an apocalyptic number.

It is an amenable number.

61790241 is a deficient number, since it is larger than the sum of its proper divisors (20596751).

61790241 is a wasteful number, since it uses less digits than its factorization.

61790241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20596750.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 61790241 is about 7860.6768792516. The cubic root of 61790241 is about 395.3423107527.

Adding to 61790241 its reverse (14209716), we get a palindrome (75999957).

The spelling of 61790241 in words is "sixty-one million, seven hundred ninety thousand, two hundred forty-one".

Divisors: 1 3 20596747 61790241