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82010916 = 2232131923401
BaseRepresentation
bin1001110001101…
…10001100100100
312201022120211100
410320312030210
5131443322131
612045440100
72014036611
oct470661444
9181276740
1082010916
1142325019
1223570030
1313cb5790
14ac6b508
1572ee7e6
hex4e36324

82010916 has 144 divisors (see below), whose sum is σ = 245831040. Its totient is φ = 22809600.

The previous prime is 82010891. The next prime is 82010959. The reversal of 82010916 is 61901028.

It is a self number, because there is not a number n which added to its sum of digits gives 82010916.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 204316 + ... + 204716.

It is an arithmetic number, because the mean of its divisors is an integer number (1707160).

Almost surely, 282010916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82010916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122915520).

82010916 is an abundant number, since it is smaller than the sum of its proper divisors (163820124).

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

82010916 is a wasteful number, since it uses less digits than its factorization.

82010916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 82010916 is about 9055.9878533487. The cubic root of 82010916 is about 434.4674259166.

The spelling of 82010916 in words is "eighty-two million, ten thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 9 12 13 18 19 23 26 36 38 39 46 52 57 69 76 78 92 114 117 138 156 171 207 228 234 247 276 299 342 401 414 437 468 494 598 684 741 802 828 874 897 988 1196 1203 1311 1482 1604 1748 1794 2223 2406 2622 2691 2964 3588 3609 3933 4446 4812 5213 5244 5382 5681 7218 7619 7866 8892 9223 10426 10764 11362 14436 15238 15639 15732 17043 18446 20852 22724 22857 27669 30476 31278 34086 36892 45714 46917 51129 55338 62556 68172 68571 83007 91428 93834 99047 102258 110676 119899 137142 166014 175237 187668 198094 204516 239798 274284 297141 332028 350474 359697 396188 479596 525711 594282 700948 719394 891423 1051422 1079091 1188564 1438788 1577133 1782846 2102844 2158182 2278081 3154266 3565692 4316364 4556162 6308532 6834243 9112324 13668486 20502729 27336972 41005458 82010916