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83416631 = 192269859
BaseRepresentation
bin1001111100011…
…01011000110111
312210222000002212
410332031120313
5132323313011
612135524035
72032013114
oct476153067
9183860085
1083416631
11430a5171
1223b2961b
131438856c
14b11590b
1574cb08b
hex4f8d637

83416631 has 12 divisors (see below), whose sum is σ = 88468200. Its totient is φ = 78640848.

The previous prime is 83416583. The next prime is 83416633. The reversal of 83416631 is 13661438.

It is a de Polignac number, because none of the positive numbers 2k-83416631 is a prime.

It is a super-2 number, since 2×834166312 = 13916668654780322, 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 (83416633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96680 + ... + 97538.

It is an arithmetic number, because the mean of its divisors is an integer number (7372350).

Almost surely, 283416631 is an apocalyptic number.

83416631 is a deficient number, since it is larger than the sum of its proper divisors (5051569).

83416631 is a wasteful number, since it uses less digits than its factorization.

83416631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166 (or 1147 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 83416631 is about 9133.2705533122. The cubic root of 83416631 is about 436.9357183331.

The spelling of 83416631 in words is "eighty-three million, four hundred sixteen thousand, six hundred thirty-one".

Divisors: 1 19 269 361 859 5111 16321 97109 231071 310099 4390349 83416631