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84805248 = 27311171181
BaseRepresentation
bin1010000111000…
…00011010000000
312220120112221010
411003200122000
5133202231443
612225400520
72046555423
oct503403200
9186515833
1084805248
1143963490
1224499140
1314753628
14b3979ba
1576a2733
hex50e0680

84805248 has 128 divisors (see below), whose sum is σ = 260418240. Its totient is φ = 24166400.

The previous prime is 84805241. The next prime is 84805267. The reversal of 84805248 is 84250848.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (84805241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71218 + ... + 72398.

Almost surely, 284805248 is an apocalyptic number.

84805248 is a gapful number since it is divisible by the number (88) 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 84805248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130209120).

84805248 is an abundant number, since it is smaller than the sum of its proper divisors (175612992).

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

84805248 is a wasteful number, since it uses less digits than its factorization.

84805248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 39.

The square root of 84805248 is about 9208.9764903598. The cubic root of 84805248 is about 439.3469098886.

The spelling of 84805248 in words is "eighty-four million, eight hundred five thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 17 22 24 32 33 34 44 48 51 64 66 68 88 96 102 128 132 136 176 187 192 204 264 272 352 374 384 408 528 544 561 704 748 816 1056 1088 1122 1181 1408 1496 1632 2112 2176 2244 2362 2992 3264 3543 4224 4488 4724 5984 6528 7086 8976 9448 11968 12991 14172 17952 18896 20077 23936 25982 28344 35904 37792 38973 40154 51964 56688 60231 71808 75584 77946 80308 103928 113376 120462 151168 155892 160616 207856 220847 226752 240924 311784 321232 415712 441694 453504 481848 623568 642464 662541 831424 883388 963696 1247136 1284928 1325082 1662848 1766776 1927392 2494272 2569856 2650164 3533552 3854784 4988544 5300328 7067104 7709568 10600656 14134208 21201312 28268416 42402624 84805248