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82088028 = 223211207293
BaseRepresentation
bin1001110010010…
…01000001011100
312201110111121100
410321021001130
5132003304103
612051233100
72014510461
oct471110134
9181414540
1082088028
1142377a50
12235a8790
13140118c9
14ac8b668
1573175a3
hex4e4905c

82088028 has 36 divisors (see below), whose sum is σ = 226365048. Its totient is φ = 24875040.

The previous prime is 82088023. The next prime is 82088033.

82088028 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (82088023) and next prime (82088033).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 82087983 and 82088001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82088023) 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 11 ways as a sum of consecutive naturals, for example, 103251 + ... + 104042.

It is an arithmetic number, because the mean of its divisors is an integer number (6287918).

Almost surely, 282088028 is an apocalyptic number.

It is an amenable number.

82088028 is an abundant number, since it is smaller than the sum of its proper divisors (144277020).

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

82088028 is a wasteful number, since it uses less digits than its factorization.

82088028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207314 (or 207309 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The square root of 82088028 is about 9060.2443675654. The cubic root of 82088028 is about 434.6035547752.

The spelling of 82088028 in words is "eighty-two million, eighty-eight thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 207293 414586 621879 829172 1243758 1865637 2280223 2487516 3731274 4560446 6840669 7462548 9120892 13681338 20522007 27362676 41044014 82088028