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83679269 = 243734337
BaseRepresentation
bin1001111110011…
…01100000100101
312211110100101012
410333031200211
5132410214034
612145312005
72034155612
oct477154045
9184410335
1083679269
1143264523
1224035605
131444ac7b
14b183509
15752dcce
hex4fcd825

83679269 has 4 divisors (see below), whose sum is σ = 83716044. Its totient is φ = 83642496.

The previous prime is 83679259. The next prime is 83679283. The reversal of 83679269 is 96297638.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96297638 = 248148819.

It can be written as a sum of positive squares in 2 ways, for example, as 61230625 + 22448644 = 7825^2 + 4738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-83679269 is a prime.

It is a super-2 number, since 2×836792692 = 14004440120748722, 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 (83679229) 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, 14732 + ... + 19605.

It is an arithmetic number, because the mean of its divisors is an integer number (20929011).

Almost surely, 283679269 is an apocalyptic number.

It is an amenable number.

83679269 is a deficient number, since it is larger than the sum of its proper divisors (36775).

83679269 is a wasteful number, since it uses less digits than its factorization.

83679269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36774.

The product of its digits is 979776, while the sum is 50.

The square root of 83679269 is about 9147.6373452384. The cubic root of 83679269 is about 437.3938032312.

The spelling of 83679269 in words is "eighty-three million, six hundred seventy-nine thousand, two hundred sixty-nine".

Divisors: 1 2437 34337 83679269