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61293 = 320431
BaseRepresentation
bin1110111101101101
310010002010
432331231
53430133
61151433
7343461
oct167555
9103063
1061293
1142061
122b579
1321b8b
14184a1
1513263
hexef6d

61293 has 4 divisors (see below), whose sum is σ = 81728. Its totient is φ = 40860.

The previous prime is 61291. The next prime is 61297. The reversal of 61293 is 39216.

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 61293 - 21 = 61291 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10213 + ... + 10218.

It is an arithmetic number, because the mean of its divisors is an integer number (20432).

261293 is an apocalyptic number.

It is an amenable number.

61293 is a deficient number, since it is larger than the sum of its proper divisors (20435).

61293 is a wasteful number, since it uses less digits than its factorization.

61293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20434.

The product of its digits is 324, while the sum is 21.

The square root of 61293 is about 247.5742312924. The cubic root of 61293 is about 39.4278981642.

The spelling of 61293 in words is "sixty-one thousand, two hundred ninety-three".

Divisors: 1 3 20431 61293