Search a number
-
+
298809020 = 225149310007
BaseRepresentation
bin10001110011110…
…111011010111100
3202211021001220202
4101303313122330
51102443342040
645352303032
710255556216
oct2163673274
9684231822
10298809020
11143740704
12840a1a78
1349ba1993
142b9835b6
151b376015
hex11cf76bc

298809020 has 24 divisors (see below), whose sum is σ = 627981984. Its totient is φ = 119431616.

The previous prime is 298809019. The next prime is 298809023. The reversal of 298809020 is 20908892.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298809023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24857 + ... + 34863.

It is an arithmetic number, because the mean of its divisors is an integer number (26165916).

Almost surely, 2298809020 is an apocalyptic number.

298809020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

298809020 is an abundant number, since it is smaller than the sum of its proper divisors (329172964).

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

298809020 is a wasteful number, since it uses less digits than its factorization.

298809020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11509 (or 11507 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 298809020 is about 17286.0932544054. The cubic root of 298809020 is about 668.5459071498.

The spelling of 298809020 in words is "two hundred ninety-eight million, eight hundred nine thousand, twenty".

Divisors: 1 2 4 5 10 20 1493 2986 5972 7465 10007 14930 20014 29860 40028 50035 100070 200140 14940451 29880902 59761804 74702255 149404510 298809020