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83424131 = 7311093527
BaseRepresentation
bin1001111100011…
…11001110000011
312210222101101122
410332033032003
5132324033011
612140022455
72032044020
oct476171603
9183871348
1083424131
11430aa86a
1223b31a2b
131438babb
14b118547
1574cd3db
hex4f8f383

83424131 has 16 divisors (see below), whose sum is σ = 99348480. Its totient is φ = 68545440.

The previous prime is 83424127. The next prime is 83424169. The reversal of 83424131 is 13142438.

It is a cyclic number.

It is not a de Polignac number, because 83424131 - 22 = 83424127 is a prime.

It is a super-2 number, since 2×834241312 = 13919171266210322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83424131.

It is not an unprimeable number, because it can be changed into a prime (83424101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21890 + ... + 25416.

It is an arithmetic number, because the mean of its divisors is an integer number (6209280).

Almost surely, 283424131 is an apocalyptic number.

83424131 is a deficient number, since it is larger than the sum of its proper divisors (15924349).

83424131 is a wasteful number, since it uses less digits than its factorization.

83424131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3674.

The product of its digits is 2304, while the sum is 26.

The square root of 83424131 is about 9133.6811308475. The cubic root of 83424131 is about 436.9488129228.

Adding to 83424131 its reverse (13142438), we get a palindrome (96566569).

The spelling of 83424131 in words is "eighty-three million, four hundred twenty-four thousand, one hundred thirty-one".

Divisors: 1 7 31 109 217 763 3379 3527 23653 24689 109337 384443 765359 2691101 11917733 83424131