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82146965 = 579207967
BaseRepresentation
bin1001110010101…
…11011010010101
312201120111110012
410321113122111
5132012200330
612052410005
72015144345
oct471273225
9181514405
1082146965
114240825a
1223616905
1314032694
14aca4d25
157329c95
hex4e57695

82146965 has 8 divisors (see below), whose sum is σ = 99824640. Its totient is φ = 64885392.

The previous prime is 82146949. The next prime is 82146971. The reversal of 82146965 is 56964128.

It is a happy number.

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 82146965 - 24 = 82146949 is a prime.

It is a super-2 number, since 2×821469652 = 13496247717422450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103589 + ... + 104378.

It is an arithmetic number, because the mean of its divisors is an integer number (12478080).

Almost surely, 282146965 is an apocalyptic number.

It is an amenable number.

82146965 is a deficient number, since it is larger than the sum of its proper divisors (17677675).

82146965 is a wasteful number, since it uses less digits than its factorization.

82146965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208051.

The product of its digits is 103680, while the sum is 41.

The square root of 82146965 is about 9063.4962900638. The cubic root of 82146965 is about 434.7075411204.

The spelling of 82146965 in words is "eighty-two million, one hundred forty-six thousand, nine hundred sixty-five".

Divisors: 1 5 79 395 207967 1039835 16429393 82146965