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275065097472 = 28321123677043
BaseRepresentation
bin1000000000010110010…
…10000100110100000000
3222021222202111201212200
410000023022010310000
514001313131104342
6330210235353200
725605240515454
oct4001312046400
9867882451780
10275065097472
11a6722092a40
12453868b2800
131cc27c38609
14d4556a2664
15724d59994c
hex400b284d00

275065097472 has 432 divisors, whose sum is σ = 916399830528. Its totient is φ = 78527877120.

The previous prime is 275065097453. The next prime is 275065097521. The reversal of 275065097472 is 274790560572.

It is a happy number.

275065097472 is a `hidden beast` number, since 2 + 7 + 506 + 5 + 0 + 97 + 47 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39051583 + ... + 39058625.

It is an arithmetic number, because the mean of its divisors is an integer number (2121295904).

Almost surely, 2275065097472 is an apocalyptic number.

275065097472 is a gapful number since it is divisible by the number (22) 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 275065097472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458199915264).

275065097472 is an abundant number, since it is smaller than the sum of its proper divisors (641334733056).

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

275065097472 is a wasteful number, since it uses less digits than its factorization.

275065097472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7166 (or 7149 counting only the distinct ones).

The product of its (nonzero) digits is 7408800, while the sum is 54.

The spelling of 275065097472 in words is "two hundred seventy-five billion, sixty-five million, ninety-seven thousand, four hundred seventy-two".