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61298 = 230649
BaseRepresentation
bin1110111101110010
310010002022
432331302
53430143
61151442
7343466
oct167562
9103068
1061298
1142066
122b582
1321b93
14184a6
1513268
hexef72

61298 has 4 divisors (see below), whose sum is σ = 91950. Its totient is φ = 30648.

The previous prime is 61297. The next prime is 61331. The reversal of 61298 is 89216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 61009 + 289 = 247^2 + 17^2 .

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15323 + ... + 15326.

261298 is an apocalyptic number.

61298 is a deficient number, since it is larger than the sum of its proper divisors (30652).

61298 is a wasteful number, since it uses less digits than its factorization.

61298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30651.

The product of its digits is 864, while the sum is 26.

The square root of 61298 is about 247.5843290679. The cubic root of 61298 is about 39.4289702503.

The spelling of 61298 in words is "sixty-one thousand, two hundred ninety-eight".

Divisors: 1 2 30649 61298