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82361430 = 23251753831
BaseRepresentation
bin1001110100010…
…11110001010110
312201222101122100
410322023301112
5132041031210
612101142530
72020026534
oct472136126
9181871570
1082361430
11425443a8
12236baa46
13140a9198
14ad1d154
15736d5c0
hex4e8bc56

82361430 has 48 divisors (see below), whose sum is σ = 226740384. Its totient is φ = 20670720.

The previous prime is 82361387. The next prime is 82361441. The reversal of 82361430 is 3416328.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 82361394 and 82361403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25386 + ... + 28445.

It is an arithmetic number, because the mean of its divisors is an integer number (4723758).

Almost surely, 282361430 is an apocalyptic number.

82361430 is an abundant number, since it is smaller than the sum of its proper divisors (144378954).

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

82361430 is a wasteful number, since it uses less digits than its factorization.

82361430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53861 (or 53858 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 82361430 is about 9075.3198290749. The cubic root of 82361430 is about 435.0855162828.

Adding to 82361430 its reverse (3416328), we get a palindrome (85777758).

The spelling of 82361430 in words is "eighty-two million, three hundred sixty-one thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 153 170 255 306 510 765 1530 53831 107662 161493 269155 322986 484479 538310 807465 915127 968958 1614930 1830254 2422395 2745381 4575635 4844790 5490762 8236143 9151270 13726905 16472286 27453810 41180715 82361430