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83195971 = 3119114051
BaseRepresentation
bin1001111010101…
…11100001000011
312210112210102021
410331113201003
5132244232341
612131102311
72030103565
oct475274103
9183483367
1083195971
1142a64401
1223a41997
131430bcb1
14b099335
1574859d1
hex4f57843

83195971 has 8 divisors (see below), whose sum is σ = 86335488. Its totient is φ = 80085000.

The previous prime is 83195941. The next prime is 83195989. The reversal of 83195971 is 17959138.

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 83195971 - 213 = 83187779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83195941) 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, 1105 + ... + 12946.

It is an arithmetic number, because the mean of its divisors is an integer number (10791936).

Almost surely, 283195971 is an apocalyptic number.

83195971 is a deficient number, since it is larger than the sum of its proper divisors (3139517).

83195971 is a wasteful number, since it uses less digits than its factorization.

83195971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14273.

The product of its digits is 68040, while the sum is 43.

The square root of 83195971 is about 9121.1825439468. The cubic root of 83195971 is about 436.5501062807.

The spelling of 83195971 in words is "eighty-three million, one hundred ninety-five thousand, nine hundred seventy-one".

Divisors: 1 31 191 5921 14051 435581 2683741 83195971