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82880060 = 22510738729
BaseRepresentation
bin1001111000010…
…10011000111100
312202221202001212
410330022120330
5132204130220
612120223552
72024316554
oct474123074
9182852055
1082880060
114286901a
122390abb8
131422b273
14b016164
1574220c5
hex4f0a63c

82880060 has 24 divisors (see below), whose sum is σ = 175679280. Its totient is φ = 32841344.

The previous prime is 82880027. The next prime is 82880069. The reversal of 82880060 is 6008828.

It is a junction number, because it is equal to n+sod(n) for n = 82879999 and 82880026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82880069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17225 + ... + 21504.

It is an arithmetic number, because the mean of its divisors is an integer number (7319970).

Almost surely, 282880060 is an apocalyptic number.

It is an amenable number.

82880060 is an abundant number, since it is smaller than the sum of its proper divisors (92799220).

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

82880060 is a wasteful number, since it uses less digits than its factorization.

82880060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38845 (or 38843 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 82880060 is about 9103.8486367031. The cubic root of 82880060 is about 435.9968506913.

Adding to 82880060 its reverse (6008828), we get a palindrome (88888888).

The spelling of 82880060 in words is "eighty-two million, eight hundred eighty thousand, sixty".

Divisors: 1 2 4 5 10 20 107 214 428 535 1070 2140 38729 77458 154916 193645 387290 774580 4144003 8288006 16576012 20720015 41440030 82880060