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82816101 = 353761151
BaseRepresentation
bin1001110111110…
…10110001100101
312202211111100000
410323322301211
5132200103401
612115011513
72023632234
oct473726145
9182744300
1082816101
1142824a65
1223899b99
1314208114
14addab1b
15740d186
hex4efac65

82816101 has 48 divisors (see below), whose sum is σ = 130352768. Its totient is φ = 52488000.

The previous prime is 82816099. The next prime is 82816103. The reversal of 82816101 is 10161828.

It is an interprime number because it is at equal distance from previous prime (82816099) and next prime (82816103).

It is not a de Polignac number, because 82816101 - 21 = 82816099 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82816103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 548376 + ... + 548526.

Almost surely, 282816101 is an apocalyptic number.

82816101 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

82816101 is a deficient number, since it is larger than the sum of its proper divisors (47536667).

82816101 is a wasteful number, since it uses less digits than its factorization.

82816101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 82816101 is about 9100.3352136061. The cubic root of 82816101 is about 435.8846681032.

Adding to 82816101 its reverse (10161828), we get a palindrome (92977929).

The spelling of 82816101 in words is "eighty-two million, eight hundred sixteen thousand, one hundred one".

Divisors: 1 3 9 27 37 61 81 111 151 183 243 333 453 549 999 1359 1647 2257 2997 4077 4941 5587 6771 8991 9211 12231 14823 16761 20313 27633 36693 50283 60939 82899 150849 182817 248697 340807 452547 548451 746091 1022421 1357641 2238273 3067263 9201789 27605367 82816101