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2261592980 = 225113079649
BaseRepresentation
bin1000011011001101…
…0010101110010100
312211121120211022222
42012303102232110
514112431433410
61012225441512
7110021136353
oct20663225624
95747524288
102261592980
11a60679309
125314a0298
132a07186ca
1417651199a
15d3836955
hex86cd2b94

2261592980 has 12 divisors (see below), whose sum is σ = 4749345300. Its totient is φ = 904637184.

The previous prime is 2261592979. The next prime is 2261592997. The reversal of 2261592980 is 892951622.

It can be written as a sum of positive squares in 2 ways, for example, as 311310736 + 1950282244 = 17644^2 + 44162^2 .

It is a super-2 number, since 2×22615929802 = 10229605614370560800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56539805 + ... + 56539844.

It is an arithmetic number, because the mean of its divisors is an integer number (395778775).

Almost surely, 22261592980 is an apocalyptic number.

2261592980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2261592980 is an abundant number, since it is smaller than the sum of its proper divisors (2487752320).

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

2261592980 is a wasteful number, since it uses less digits than its factorization.

2261592980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113079658 (or 113079656 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 2261592980 is about 47556.2086377794. The cubic root of 2261592980 is about 1312.6173764113.

The spelling of 2261592980 in words is "two billion, two hundred sixty-one million, five hundred ninety-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 113079649 226159298 452318596 565398245 1130796490 2261592980