Search a number
-
+
275742952869888 = 21237719231443
BaseRepresentation
bin111110101100100101101000…
…110000010101000000000000
31100011022202202111021020000000
4332230211220300111000000
5242120233031413314023
62414242321440000000
7112036525266040320
oct7654455060250000
91304282674236000
10275742952869888
117a950a253224a9
1226b149b9000000
13bab25ab26b7ca
144c1405c95d280
1521d2a911ca243
hexfac968c15000

275742952869888 has 832 divisors, whose sum is σ = 994893695539200. Its totient is φ = 74636867764224.

The previous prime is 275742952869887. The next prime is 275742952869889. The reversal of 275742952869888 is 888968259247572.

275742952869888 is a `hidden beast` number, since 2 + 7 + 5 + 74 + 2 + 9 + 528 + 6 + 9 + 8 + 8 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (275742952869887) and next prime (275742952869889).

It is a junction number, because it is equal to n+sod(n) for n = 275742952869798 and 275742952869807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275742952869887) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1191291895 + ... + 1191523337.

Almost surely, 2275742952869888 is an apocalyptic number.

275742952869888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275742952869888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497446847769600).

275742952869888 is an abundant number, since it is smaller than the sum of its proper divisors (719150742669312).

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

275742952869888 is an frugal number, since it uses more digits than its factorization.

275742952869888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231514 (or 231474 counting only the distinct ones).

The product of its digits is 78033715200, while the sum is 90.

The spelling of 275742952869888 in words is "two hundred seventy-five trillion, seven hundred forty-two billion, nine hundred fifty-two million, eight hundred sixty-nine thousand, eight hundred eighty-eight".