Search a number
-
+
2775280025050 = 2521310142273877
BaseRepresentation
bin101000011000101011100…
…101000111110111011010
3100211022111000222202021221
4220120223211013313122
5330432233141300200
65522540202322254
7404336011662211
oct50305345076732
910738430882257
102775280025050
1197aa9824a515
12389a4b7b938a
13171928000420
1498477b22078
154c2d0eb291a
hex2862b947dda

2775280025050 has 48 divisors (see below), whose sum is σ = 5614140093912. Its totient is φ = 1014573024000.

The previous prime is 2775280024963. The next prime is 2775280025051. The reversal of 2775280025050 is 505200825772.

It can be written as a sum of positive squares in 12 ways, for example, as 1012867126569 + 1762412898481 = 1006413^2 + 1327559^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2775280024988 and 2775280025006.

It is not an unprimeable number, because it can be changed into a prime (2775280025051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21071289 + ... + 21202588.

Almost surely, 22775280025050 is an apocalyptic number.

2775280025050 is an abundant number, since it is smaller than the sum of its proper divisors (2838860068862).

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

2775280025050 is a wasteful number, since it uses less digits than its factorization.

2775280025050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42274003 (or 42273998 counting only the distinct ones).

The product of its (nonzero) digits is 392000, while the sum is 43.

The spelling of 2775280025050 in words is "two trillion, seven hundred seventy-five billion, two hundred eighty million, twenty-five thousand, fifty".

Divisors: 1 2 5 10 13 25 26 50 65 101 130 202 325 505 650 1010 1313 2525 2626 5050 6565 13130 32825 65650 42273877 84547754 211369385 422738770 549560401 1056846925 1099120802 2113693850 2747802005 4269661577 5495604010 8539323154 13739010025 21348307885 27478020050 42696615770 55505600501 106741539425 111011201002 213483078850 277528002505 555056005010 1387640012525 2775280025050