Search a number
-
+
2988498440 = 23574712461
BaseRepresentation
bin1011001000100000…
…1101111000001000
321201021101110011102
42302020031320020
522110023422230
61212313520532
7134025550304
oct26210157010
97637343142
102988498440
1112a3a25124
126b4a13148
133881b8395
14204c90d04
15127571045
hexb220de08

2988498440 has 16 divisors (see below), whose sum is σ = 6724121580. Its totient is φ = 1195399360.

The previous prime is 2988498419. The next prime is 2988498449. The reversal of 2988498440 is 448948892.

It can be written as a sum of positive squares in 2 ways, for example, as 2853055396 + 135443044 = 53414^2 + 11638^2 .

It is a super-2 number, since 2×29884984402 = 17862245851764867200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2988498449) 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, 37356191 + ... + 37356270.

Almost surely, 22988498440 is an apocalyptic number.

2988498440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2988498440 is an abundant number, since it is smaller than the sum of its proper divisors (3735623140).

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

2988498440 is a wasteful number, since it uses less digits than its factorization.

2988498440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74712472 (or 74712468 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 56.

The square root of 2988498440 is about 54667.1605262245. The cubic root of 2988498440 is about 1440.4040854139.

The spelling of 2988498440 in words is "two billion, nine hundred eighty-eight million, four hundred ninety-eight thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 74712461 149424922 298849844 373562305 597699688 747124610 1494249220 2988498440