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83942423 = 473475147
BaseRepresentation
bin1010000000011…
…01110000010111
312211221201100122
411000031300113
5132442124143
612155102155
72036333045
oct500156027
9184851318
1083942423
1143424204
122414195b
1314510996
14b211395
157581c68
hex500dc17

83942423 has 8 divisors (see below), whose sum is σ = 85992192. Its totient is φ = 81903736.

The previous prime is 83942401. The next prime is 83942429. The reversal of 83942423 is 32424938.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83942423 - 26 = 83942359 is a prime.

It is a super-2 number, since 2×839424232 = 14092660758221858, 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 (83942429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13736 + ... + 18882.

It is an arithmetic number, because the mean of its divisors is an integer number (10749024).

Almost surely, 283942423 is an apocalyptic number.

83942423 is a deficient number, since it is larger than the sum of its proper divisors (2049769).

83942423 is a wasteful number, since it uses less digits than its factorization.

83942423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5541.

The product of its digits is 41472, while the sum is 35.

The square root of 83942423 is about 9162.0097686043. The cubic root of 83942423 is about 437.8518277948.

The spelling of 83942423 in words is "eighty-three million, nine hundred forty-two thousand, four hundred twenty-three".

Divisors: 1 47 347 5147 16309 241909 1786009 83942423