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97223869 = 805312073
BaseRepresentation
bin1011100101110…
…00010010111101
320202221111002001
411302320102331
5144342130434
613351502301
72260250341
oct562702275
9222844061
1097223869
114a975806
1228687991
13171b1022
14ccab621
158807114
hex5cb84bd

97223869 has 4 divisors (see below), whose sum is σ = 97243996. Its totient is φ = 97203744.

The previous prime is 97223851. The next prime is 97223879. The reversal of 97223869 is 96832279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96832279 = 145366643.

It can be written as a sum of positive squares in 2 ways, for example, as 31775769 + 65448100 = 5637^2 + 8090^2 .

It is a cyclic number.

It is not a de Polignac number, because 97223869 - 211 = 97221821 is a prime.

It is a super-2 number, since 2×972238692 = 18904961406658322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97223879) 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, 2017 + ... + 14089.

It is an arithmetic number, because the mean of its divisors is an integer number (24310999).

Almost surely, 297223869 is an apocalyptic number.

It is an amenable number.

97223869 is a deficient number, since it is larger than the sum of its proper divisors (20127).

97223869 is a wasteful number, since it uses less digits than its factorization.

97223869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20126.

The product of its digits is 326592, while the sum is 46.

The square root of 97223869 is about 9860.2164783538. The cubic root of 97223869 is about 459.8232922403.

The spelling of 97223869 in words is "ninety-seven million, two hundred twenty-three thousand, eight hundred sixty-nine".

Divisors: 1 8053 12073 97223869