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83630471 = 374614903
BaseRepresentation
bin1001111110000…
…01100110000111
312211100212102212
410333001212013
5132402133341
612144254035
72033563421
oct477014607
9184325385
1083630471
11432308a1
122401131b
13144319b2
14b16d811
15751e5eb
hex4fc1987

83630471 has 8 divisors (see below), whose sum is σ = 86094624. Its totient is φ = 81177120.

The previous prime is 83630453. The next prime is 83630473. The reversal of 83630471 is 17403638.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83630471 - 226 = 16521607 is a prime.

It is a super-3 number, since 3×836304713 (a number of 25 digits) contains 333 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 (83630473) 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, 14606 + ... + 19508.

It is an arithmetic number, because the mean of its divisors is an integer number (10761828).

Almost surely, 283630471 is an apocalyptic number.

83630471 is a deficient number, since it is larger than the sum of its proper divisors (2464153).

83630471 is a wasteful number, since it uses less digits than its factorization.

83630471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5401.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 83630471 is about 9144.9697101740. The cubic root of 83630471 is about 437.3087638765.

The spelling of 83630471 in words is "eighty-three million, six hundred thirty thousand, four hundred seventy-one".

Divisors: 1 37 461 4903 17057 181411 2260283 83630471