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82196768 = 2517612477
BaseRepresentation
bin1001110011000…
…11100100100000
312201200000202202
410321203210200
5132020244033
612053432332
72015442503
oct471434440
9181600682
1082196768
1142441715
122363b6a8
131404c254
14acb913a
1573398e8
hex4e63920

82196768 has 48 divisors (see below), whose sum is σ = 174223224. Its totient is φ = 38031360.

The previous prime is 82196767. The next prime is 82196773. The reversal of 82196768 is 86769128.

It can be written as a sum of positive squares in 4 ways, for example, as 60031504 + 22165264 = 7748^2 + 4708^2 .

It is not an unprimeable number, because it can be changed into a prime (82196767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31946 + ... + 34422.

Almost surely, 282196768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82196768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87111612).

82196768 is an abundant number, since it is smaller than the sum of its proper divisors (92026456).

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

82196768 is a wasteful number, since it uses less digits than its factorization.

82196768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565 (or 2557 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The square root of 82196768 is about 9066.2433234499. The cubic root of 82196768 is about 434.7953729957.

The spelling of 82196768 in words is "eighty-two million, one hundred ninety-six thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 16 17 32 34 61 68 122 136 244 272 488 544 976 1037 1952 2074 2477 4148 4954 8296 9908 16592 19816 33184 39632 42109 79264 84218 151097 168436 302194 336872 604388 673744 1208776 1347488 2417552 2568649 4835104 5137298 10274596 20549192 41098384 82196768