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275125276660 = 225135081208261
BaseRepresentation
bin1000000000011101011…
…11101000111111110100
3222022010221202011012111
410000032233220333310
514001424032323120
6330220225300404
725606601160133
oct4001657507764
9868127664174
10275125276660
11a6753056503
12453a2a94704
131cc37548cc0
14d45d68991a
1572539d575a
hex400ebe8ff4

275125276660 has 48 divisors (see below), whose sum is σ = 622331840592. Its totient is φ = 101564236800.

The previous prime is 275125276649. The next prime is 275125276669. The reversal of 275125276660 is 66672521572.

It can be written as a sum of positive squares in 8 ways, for example, as 44027789584 + 231097487076 = 209828^2 + 480726^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275125276669) 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, 1216930 + ... + 1425190.

It is an arithmetic number, because the mean of its divisors is an integer number (12965246679).

Almost surely, 2275125276660 is an apocalyptic number.

275125276660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275125276660 is an abundant number, since it is smaller than the sum of its proper divisors (347206563932).

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

275125276660 is a wasteful number, since it uses less digits than its factorization.

275125276660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213364 (or 213362 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 275125276660 in words is "two hundred seventy-five billion, one hundred twenty-five million, two hundred seventy-six thousand, six hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 5081 10162 20324 25405 50810 66053 101620 132106 208261 264212 330265 416522 660530 833044 1041305 1321060 2082610 2707393 4165220 5414786 10829572 13536965 27073930 54147860 1058174141 2116348282 4232696564 5290870705 10581741410 13756263833 21163482820 27512527666 55025055332 68781319165 137562638330 275125276660