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2275047780 = 2235172230439
BaseRepresentation
bin1000011110011010…
…0111100101100100
312212112220101211220
42013212213211210
514124403012110
61013430100340
7110243405235
oct20746474544
95775811756
102275047780
11a68229085
12535aaa6b0
132a3449925
1417821508c
15d4ae3370
hex879a7964

2275047780 has 48 divisors (see below), whose sum is σ = 6744850560. Its totient is φ = 570992128.

The previous prime is 2275047757. The next prime is 2275047781. The reversal of 2275047780 is 877405722.

2275047780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2275047781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1114200 + ... + 1116239.

It is an arithmetic number, because the mean of its divisors is an integer number (140517720).

Almost surely, 22275047780 is an apocalyptic number.

2275047780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2275047780 is an abundant number, since it is smaller than the sum of its proper divisors (4469802780).

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

2275047780 is a wasteful number, since it uses less digits than its factorization.

2275047780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230468 (or 2230466 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 42.

The square root of 2275047780 is about 47697.4609387125. The cubic root of 2275047780 is about 1315.2152644843.

The spelling of 2275047780 in words is "two billion, two hundred seventy-five million, forty-seven thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1020 2230439 4460878 6691317 8921756 11152195 13382634 22304390 26765268 33456585 37917463 44608780 66913170 75834926 113752389 133826340 151669852 189587315 227504778 379174630 455009556 568761945 758349260 1137523890 2275047780