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83012671 = 711858953
BaseRepresentation
bin1001111001010…
…10110000111111
312210012110222101
410330222300333
5132222401141
612123125531
72025411310
oct474526077
9183173871
1083012671
1142949715
12239738a7
1314276731
14b04c607
15744b531
hex4f2ac3f

83012671 has 4 divisors (see below), whose sum is σ = 94871632. Its totient is φ = 71153712.

The previous prime is 83012641. The next prime is 83012689. The reversal of 83012671 is 17621038.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 83012671 - 25 = 83012639 is a prime.

It is a super-2 number, since 2×830126712 = 13782207093108482, 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 (83012641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5929470 + ... + 5929483.

It is an arithmetic number, because the mean of its divisors is an integer number (23717908).

Almost surely, 283012671 is an apocalyptic number.

83012671 is a deficient number, since it is larger than the sum of its proper divisors (11858961).

83012671 is a wasteful number, since it uses less digits than its factorization.

83012671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11858960.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 83012671 is about 9111.1289640746. The cubic root of 83012671 is about 436.2292635250.

The spelling of 83012671 in words is "eighty-three million, twelve thousand, six hundred seventy-one".

Divisors: 1 7 11858953 83012671