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97345817 = 313311009
BaseRepresentation
bin1011100110101…
…10000100011001
320210011200100122
411303112010121
5144410031232
613354243025
72261266022
oct563260431
9223150318
1097345817
114aa49398
1228726475
131722469a
14ccddc49
15882d312
hex5cd6119

97345817 has 4 divisors (see below), whose sum is σ = 97657140. Its totient is φ = 97034496.

The previous prime is 97345783. The next prime is 97345819. The reversal of 97345817 is 71854379.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71854379 = 531355743.

It can be written as a sum of positive squares in 2 ways, for example, as 12503296 + 84842521 = 3536^2 + 9211^2 .

It is a cyclic number.

It is not a de Polignac number, because 97345817 - 28 = 97345561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97345819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155192 + ... + 155817.

It is an arithmetic number, because the mean of its divisors is an integer number (24414285).

Almost surely, 297345817 is an apocalyptic number.

It is an amenable number.

97345817 is a deficient number, since it is larger than the sum of its proper divisors (311323).

97345817 is a wasteful number, since it uses less digits than its factorization.

97345817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311322.

The product of its digits is 211680, while the sum is 44.

The square root of 97345817 is about 9866.3983803615. The cubic root of 97345817 is about 460.0154641934.

It can be divided in two parts, 9734 and 5817, that added together give a palindrome (15551).

The spelling of 97345817 in words is "ninety-seven million, three hundred forty-five thousand, eight hundred seventeen".

Divisors: 1 313 311009 97345817