Search a number
-
+
245898 = 23219719
BaseRepresentation
bin111100000010001010
3110111022100
4330002022
530332043
65134230
72042622
oct740212
9414270
10245898
11158824
12ba376
1387c03
1465882
154ccd3
hex3c08a

245898 has 24 divisors (see below), whose sum is σ = 561600. Its totient is φ = 77544.

The previous prime is 245897. The next prime is 245899. The reversal of 245898 is 898542.

It is an interprime number because it is at equal distance from previous prime (245897) and next prime (245899).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (245897) 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 in 11 ways as a sum of consecutive naturals, for example, 18 + ... + 701.

It is an arithmetic number, because the mean of its divisors is an integer number (23400).

2245898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280800).

245898 is an abundant number, since it is smaller than the sum of its proper divisors (315702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245898 is a wasteful number, since it uses less digits than its factorization.

245898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746 (or 743 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 245898 is about 495.8810341201. The cubic root of 245898 is about 62.6496042779.

It can be divided in two parts, 2458 and 98, that added together give a triangular number (2556 = T71).

The spelling of 245898 in words is "two hundred forty-five thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 719 1438 2157 4314 6471 12942 13661 27322 40983 81966 122949 245898