Search a number
-
+
271591306076160 = 213345729531753
BaseRepresentation
bin111101110000001011000111…
…010100101010000000000000
31022121121212122002101012220000
4331300023013110222000000
5241044222443323414120
62401343153520520000
7111130552514411100
oct7560130724520000
91277555562335800
10271591306076160
11795a0253a00234
122656426aa80000
13b870c47985c85
144b0d137277200
15215eaa6c9b990
hexf702c752a000

271591306076160 has 1680 divisors, whose sum is σ = 1134443500710696. Its totient is φ = 61977497960448.

The previous prime is 271591306076147. The next prime is 271591306076171. The reversal of 271591306076160 is 61670603195172.

271591306076160 is a `hidden beast` number, since 2 + 7 + 1 + 5 + 9 + 13 + 0 + 6 + 0 + 7 + 616 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 128093140094976 + 143498165981184 = 11317824^2 + 11979072^2 .

It is a tau number, because it is divible by the number of its divisors (1680).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 271591306076097 and 271591306076106.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 154929437844 + ... + 154929439596.

Almost surely, 2271591306076160 is an apocalyptic number.

271591306076160 is a gapful number since it is divisible by the number (20) 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 271591306076160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567221750355348).

271591306076160 is an abundant number, since it is smaller than the sum of its proper divisors (862852194634536).

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

271591306076160 is an equidigital number, since it uses as much as digits as its factorization.

271591306076160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763 (or 2723 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The spelling of 271591306076160 in words is "two hundred seventy-one trillion, five hundred ninety-one billion, three hundred six million, seventy-six thousand, one hundred sixty".