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83138846 = 2711352553
BaseRepresentation
bin1001111010010…
…01100100011110
312210102220001112
410331021210132
5132240420341
612125542022
72026445210
oct475114436
9183386045
1083138846
1142a2549a
1223a14912
13142bbcab
14b0825b0
157473aeb
hex4f4991e

83138846 has 16 divisors (see below), whose sum is σ = 143787744. Its totient is φ = 35314944.

The previous prime is 83138843. The next prime is 83138849. The reversal of 83138846 is 64883138.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (83138843) and next prime (83138849).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83138843) 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, 24695 + ... + 27858.

It is an arithmetic number, because the mean of its divisors is an integer number (8986734).

Almost surely, 283138846 is an apocalyptic number.

83138846 is a deficient number, since it is larger than the sum of its proper divisors (60648898).

83138846 is a wasteful number, since it uses less digits than its factorization.

83138846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52675.

The product of its digits is 110592, while the sum is 41.

The square root of 83138846 is about 9118.0505591930. The cubic root of 83138846 is about 436.4501670071.

The spelling of 83138846 in words is "eighty-three million, one hundred thirty-eight thousand, eight hundred forty-six".

Divisors: 1 2 7 14 113 226 791 1582 52553 105106 367871 735742 5938489 11876978 41569423 83138846