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82961214 = 23722691049
BaseRepresentation
bin1001111000111…
…10001100111110
312210002212101120
410330132030332
5132214224324
612122051410
72025105300
oct474361476
9183085346
1082961214
1142913a96
1223949b66
131425919b
14b037970
15743b179
hex4f1e33e

82961214 has 48 divisors (see below), whose sum is σ = 193914000. Its totient is φ = 23592576.

The previous prime is 82961213. The next prime is 82961237. The reversal of 82961214 is 41216928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82961213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78562 + ... + 79610.

It is an arithmetic number, because the mean of its divisors is an integer number (4039875).

Almost surely, 282961214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82961214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96957000).

82961214 is an abundant number, since it is smaller than the sum of its proper divisors (110952786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82961214 is a wasteful number, since it uses less digits than its factorization.

82961214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337 (or 1330 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 82961214 is about 9108.3046721111. The cubic root of 82961214 is about 436.1391098629.

The spelling of 82961214 in words is "eighty-two million, nine hundred sixty-one thousand, two hundred fourteen".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 269 294 538 807 1049 1614 1883 2098 3147 3766 5649 6294 7343 11298 13181 14686 22029 26362 39543 44058 51401 79086 102802 154203 282181 308406 564362 846543 1693086 1975267 3950534 5925801 11851602 13826869 27653738 41480607 82961214