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5147280 = 243352383
BaseRepresentation
bin10011101000101010010000
3100200111202000
4103220222100
52304203110
6302154000
761515435
oct23505220
910614660
105147280
1129a6256
121882900
1310b2b38
1497db8c
156ba1c0
hex4e8a90

5147280 has 80 divisors (see below), whose sum is σ = 17736960. Its totient is φ = 1372032.

The previous prime is 5147279. The next prime is 5147281. The reversal of 5147280 is 827415.

5147280 is a `hidden beast` number, since 514 + 72 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (5147279) and next prime (5147281).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (5147281) 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, 969 + ... + 3351.

It is an arithmetic number, because the mean of its divisors is an integer number (221712).

Almost surely, 25147280 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 5147280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8868480).

5147280 is an abundant number, since it is smaller than the sum of its proper divisors (12589680).

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

5147280 is a wasteful number, since it uses less digits than its factorization.

5147280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405 (or 2393 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 5147280 is about 2268.7617768289. The cubic root of 5147280 is about 172.6603424055.

The spelling of 5147280 in words is "five million, one hundred forty-seven thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 90 108 120 135 144 180 216 240 270 360 432 540 720 1080 2160 2383 4766 7149 9532 11915 14298 19064 21447 23830 28596 35745 38128 42894 47660 57192 64341 71490 85788 95320 107235 114384 128682 142980 171576 190640 214470 257364 285960 321705 343152 428940 514728 571920 643410 857880 1029456 1286820 1715760 2573640 5147280