Search a number
-
+
57898 = 228949
BaseRepresentation
bin1110001000101010
32221102101
432020222
53323043
61124014
7330541
oct161052
987371
1057898
113a555
122960a
1320479
1417158
151224d
hexe22a

57898 has 4 divisors (see below), whose sum is σ = 86850. Its totient is φ = 28948.

The previous prime is 57881. The next prime is 57899. The reversal of 57898 is 89875.

It can be divided in two parts, 578 and 98, that multiplied together give a square (56644 = 2382).

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., 31329 + 26569 = 177^2 + 163^2 .

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (57899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14473 + ... + 14476.

257898 is an apocalyptic number.

57898 is a deficient number, since it is larger than the sum of its proper divisors (28952).

57898 is a wasteful number, since it uses less digits than its factorization.

57898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28951.

The product of its digits is 20160, while the sum is 37.

The square root of 57898 is about 240.6200324163. The cubic root of 57898 is about 38.6860617456.

The spelling of 57898 in words is "fifty-seven thousand, eight hundred ninety-eight".

Divisors: 1 2 28949 57898