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97282481 = 281346201
BaseRepresentation
bin1011100110001…
…10100110110001
320210001110110212
411303012212301
5144401014411
613353033505
72260613252
oct563064661
9223043425
1097282481
114aa0584a
12286b5895
13172018ca
14ccc4b29
15881968b
hex5cc69b1

97282481 has 4 divisors (see below), whose sum is σ = 97628964. Its totient is φ = 96936000.

The previous prime is 97282453. The next prime is 97282511. The reversal of 97282481 is 18428279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18428279 = 69126669.

It can be written as a sum of positive squares in 2 ways, for example, as 77176225 + 20106256 = 8785^2 + 4484^2 .

It is a cyclic number.

It is not a de Polignac number, because 97282481 - 214 = 97266097 is a prime.

It is a super-2 number, since 2×972824812 = 18927762219030722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97282421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172820 + ... + 173381.

It is an arithmetic number, because the mean of its divisors is an integer number (24407241).

Almost surely, 297282481 is an apocalyptic number.

It is an amenable number.

97282481 is a deficient number, since it is larger than the sum of its proper divisors (346483).

97282481 is a wasteful number, since it uses less digits than its factorization.

97282481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346482.

The product of its digits is 64512, while the sum is 41.

The square root of 97282481 is about 9863.1881762440. The cubic root of 97282481 is about 459.9156760997.

The spelling of 97282481 in words is "ninety-seven million, two hundred eighty-two thousand, four hundred eighty-one".

Divisors: 1 281 346201 97282481