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97230745 = 519446149
BaseRepresentation
bin1011100101110…
…01111110011001
320202221211111201
411302321332121
5144342340440
613351554201
72260306363
oct562717631
9222854451
1097230745
114a97a997
122868b961
13171b41b1
14ccadd33
15880919a
hex5cb9f99

97230745 has 4 divisors (see below), whose sum is σ = 116676900. Its totient is φ = 77784592.

The previous prime is 97230743. The next prime is 97230799. The reversal of 97230745 is 54703279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54703279 = 371478467.

It can be written as a sum of positive squares in 2 ways, for example, as 59923081 + 37307664 = 7741^2 + 6108^2 .

It is a cyclic number.

It is not a de Polignac number, because 97230745 - 21 = 97230743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97230743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9723070 + ... + 9723079.

It is an arithmetic number, because the mean of its divisors is an integer number (29169225).

Almost surely, 297230745 is an apocalyptic number.

It is an amenable number.

97230745 is a deficient number, since it is larger than the sum of its proper divisors (19446155).

97230745 is a wasteful number, since it uses less digits than its factorization.

97230745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19446154.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 97230745 is about 9860.5651460756. The cubic root of 97230745 is about 459.8341320696.

The spelling of 97230745 in words is "ninety-seven million, two hundred thirty thousand, seven hundred forty-five".

Divisors: 1 5 19446149 97230745