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83142412 = 22151137653
BaseRepresentation
bin1001111010010…
…10011100001100
312210110001221121
410331022130030
5132241024122
612130010324
72026461463
oct475123414
9183401847
1083142412
1142a28141
1223a169a4
13142c07c2
14b0839da
157474bc7
hex4f4a70c

83142412 has 12 divisors (see below), whose sum is σ = 146463856. Its totient is φ = 41295600.

The previous prime is 83142407. The next prime is 83142413. The reversal of 83142412 is 21424138.

It is not an unprimeable number, because it can be changed into a prime (83142413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68223 + ... + 69430.

Almost surely, 283142412 is an apocalyptic number.

It is an amenable number.

83142412 is a deficient number, since it is larger than the sum of its proper divisors (63321444).

83142412 is a wasteful number, since it uses less digits than its factorization.

83142412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137808 (or 137806 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 83142412 is about 9118.2461032810. The cubic root of 83142412 is about 436.4564070065.

The spelling of 83142412 in words is "eighty-three million, one hundred forty-two thousand, four hundred twelve".

Divisors: 1 2 4 151 302 604 137653 275306 550612 20785603 41571206 83142412