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83973142 = 21119319777
BaseRepresentation
bin1010000000101…
…01010000010110
312212000021111101
411000111100112
5132444120032
612155500314
72036521441
oct500252026
9185007441
1083973142
11434452a0
122415769a
1314521966
14b21c658
15758ade7
hex5015416

83973142 has 16 divisors (see below), whose sum is σ = 138129552. Its totient is φ = 37969920.

The previous prime is 83973137. The next prime is 83973143. The reversal of 83973142 is 24137938.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83973143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5643 + ... + 14134.

It is an arithmetic number, because the mean of its divisors is an integer number (8633097).

Almost surely, 283973142 is an apocalyptic number.

83973142 is a deficient number, since it is larger than the sum of its proper divisors (54156410).

83973142 is a wasteful number, since it uses less digits than its factorization.

83973142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19983.

The product of its digits is 36288, while the sum is 37.

The square root of 83973142 is about 9163.6860487470. The cubic root of 83973142 is about 437.9052323762.

The spelling of 83973142 in words is "eighty-three million, nine hundred seventy-three thousand, one hundred forty-two".

Divisors: 1 2 11 22 193 386 2123 4246 19777 39554 217547 435094 3816961 7633922 41986571 83973142