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83982071 = 1920532153
BaseRepresentation
bin1010000000101…
…11011011110111
312212000201202002
411000113123313
5132444411241
612200005515
72036556455
oct500273367
9185021662
1083982071
1143450a78
122416089b
1314525a44
14b2219d5
15758d89b
hex50176f7

83982071 has 8 divisors (see below), whose sum is σ = 88486320. Its totient is φ = 79486272.

The previous prime is 83982061. The next prime is 83982089. The reversal of 83982071 is 17028938.

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

It is not a de Polignac number, because 83982071 - 210 = 83981047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83982061) 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, 37931 + ... + 40083.

It is an arithmetic number, because the mean of its divisors is an integer number (11060790).

Almost surely, 283982071 is an apocalyptic number.

83982071 is a deficient number, since it is larger than the sum of its proper divisors (4504249).

83982071 is a wasteful number, since it uses less digits than its factorization.

83982071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4225.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 83982071 is about 9164.1732305757. The cubic root of 83982071 is about 437.9207528833.

The spelling of 83982071 in words is "eighty-three million, nine hundred eighty-two thousand, seventy-one".

Divisors: 1 19 2053 2153 39007 40907 4420109 83982071