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82867044 = 223131731247
BaseRepresentation
bin1001111000001…
…11001101100100
312202221002012210
410330013031210
5132203221134
612120043420
72024233611
oct474071544
9182832183
1082867044
114285a267
1223903570
1314225370
14b011508
15741d2e9
hex4f07364

82867044 has 48 divisors (see below), whose sum is σ = 220485888. Its totient is φ = 23996928.

The previous prime is 82867021. The next prime is 82867073. The reversal of 82867044 is 44076828.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 82866993 and 82867011.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12972 + ... + 18275.

It is an arithmetic number, because the mean of its divisors is an integer number (4593456).

Almost surely, 282867044 is an apocalyptic number.

It is an amenable number.

82867044 is an abundant number, since it is smaller than the sum of its proper divisors (137618844).

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

82867044 is a wasteful number, since it uses less digits than its factorization.

82867044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31284 (or 31282 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 82867044 is about 9103.1337461338. The cubic root of 82867044 is about 435.9740256108.

The spelling of 82867044 in words is "eighty-two million, eight hundred sixty-seven thousand, forty-four".

Divisors: 1 2 3 4 6 12 13 17 26 34 39 51 52 68 78 102 156 204 221 442 663 884 1326 2652 31247 62494 93741 124988 187482 374964 406211 531199 812422 1062398 1218633 1593597 1624844 2124796 2437266 3187194 4874532 6374388 6905587 13811174 20716761 27622348 41433522 82867044