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82042464 = 25372107163
BaseRepresentation
bin1001110001111…
…01111001100000
312201101012002210
410320331321200
5132000324324
612050242120
72014230600
oct470757140
9181335083
1082042464
1142346799
1223586340
1313cc6c4a
14ac78c00
157308d29
hex4e3de60

82042464 has 144 divisors (see below), whose sum is σ = 254415168. Its totient is φ = 23079168.

The previous prime is 82042427. The next prime is 82042481. The reversal of 82042464 is 46424028.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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, 503247 + ... + 503409.

It is an arithmetic number, because the mean of its divisors is an integer number (1766772).

Almost surely, 282042464 is an apocalyptic number.

82042464 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82042464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127207584).

82042464 is an abundant number, since it is smaller than the sum of its proper divisors (172372704).

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

82042464 is a wasteful number, since it uses less digits than its factorization.

82042464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 82042464 is about 9057.7295168271. The cubic root of 82042464 is about 434.5231291564.

The spelling of 82042464 in words is "eighty-two million, forty-two thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 84 96 98 107 112 147 163 168 196 214 224 294 321 326 336 392 428 489 588 642 652 672 749 784 856 978 1141 1176 1284 1304 1498 1568 1712 1956 2247 2282 2352 2568 2608 2996 3423 3424 3912 4494 4564 4704 5136 5216 5243 5992 6846 7824 7987 8988 9128 10272 10486 11984 13692 15648 15729 15974 17441 17976 18256 20972 23961 23968 27384 31458 31948 34882 35952 36512 41944 47922 52323 54768 62916 63896 69764 71904 83888 95844 104646 109536 122087 125832 127792 139528 167776 191688 209292 244174 251664 255584 279056 366261 383376 418584 488348 503328 558112 732522 766752 837168 854609 976696 1465044 1674336 1709218 1953392 2563827 2930088 3418436 3906784 5127654 5860176 6836872 10255308 11720352 13673744 20510616 27347488 41021232 82042464