Search a number
-
+
2290049380 = 225293948361
BaseRepresentation
bin1000100001111111…
…0110000101100100
312220121010120011201
42020133312011210
514142223040010
61015123412244
7110515045543
oct21037660544
95817116151
102290049380
11a75744aa3
1253ab24084
132a659cc08
1417a1dc15a
15d60a823a
hex887f6164

2290049380 has 24 divisors (see below), whose sum is σ = 4974936120. Its totient is φ = 884432640.

The previous prime is 2290049341. The next prime is 2290049381. The reversal of 2290049380 is 839400922.

It can be written as a sum of positive squares in 4 ways, for example, as 2149156 + 2287900224 = 1466^2 + 47832^2 .

It is not an unprimeable number, because it can be changed into a prime (2290049381) 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, 1973601 + ... + 1974760.

It is an arithmetic number, because the mean of its divisors is an integer number (207289005).

Almost surely, 22290049380 is an apocalyptic number.

2290049380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2290049380 is an abundant number, since it is smaller than the sum of its proper divisors (2684886740).

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

2290049380 is a wasteful number, since it uses less digits than its factorization.

2290049380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3948399 (or 3948397 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 2290049380 is about 47854.4603981698. The cubic root of 2290049380 is about 1318.0997642550.

The spelling of 2290049380 in words is "two billion, two hundred ninety million, forty-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 3948361 7896722 15793444 19741805 39483610 78967220 114502469 229004938 458009876 572512345 1145024690 2290049380