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5081280 = 26356779
BaseRepresentation
bin10011011000100011000000
3100120011012120
4103120203000
52300100110
6300524240
761122141
oct23304300
910504176
105081280
112960706
121850680
13108ba99
14963ac8
156a5870
hex4d88c0

5081280 has 112 divisors (see below), whose sum is σ = 16581120. Its totient is φ = 1317888.

The previous prime is 5081231. The next prime is 5081287. The reversal of 5081280 is 821805.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 5081280.

It is not an unprimeable number, because it can be changed into a prime (5081287) 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, 64281 + ... + 64359.

Almost surely, 25081280 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 5081280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8290560).

5081280 is an abundant number, since it is smaller than the sum of its proper divisors (11499840).

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

5081280 is a wasteful number, since it uses less digits than its factorization.

5081280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 5081280 is about 2254.1694701153. The cubic root of 5081280 is about 171.9191976694.

The spelling of 5081280 in words is "five million, eighty-one thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 67 79 80 96 120 134 158 160 192 201 237 240 268 316 320 335 395 402 474 480 536 632 670 790 804 948 960 1005 1072 1185 1264 1340 1580 1608 1896 2010 2144 2370 2528 2680 3160 3216 3792 4020 4288 4740 5056 5293 5360 6320 6432 7584 8040 9480 10586 10720 12640 12864 15168 15879 16080 18960 21172 21440 25280 26465 31758 32160 37920 42344 52930 63516 64320 75840 79395 84688 105860 127032 158790 169376 211720 254064 317580 338752 423440 508128 635160 846880 1016256 1270320 1693760 2540640 5081280