Search a number
-
+
80275520 = 2651323839
BaseRepresentation
bin1001100100011…
…10100001000000
312121001102022102
410302032201000
5131022304040
611544325532
71663221263
oct462164100
9177042272
1080275520
114134a206
1222a738a8
1313828910
14a938cda
1570aa515
hex4c8e840

80275520 has 112 divisors (see below), whose sum is σ = 215066880. Its totient is φ = 28317696.

The previous prime is 80275519. The next prime is 80275529. The reversal of 80275520 is 2557208.

It is a super-2 number, since 2×802755202 = 12888318222540800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80275529) 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, 95261 + ... + 96099.

It is an arithmetic number, because the mean of its divisors is an integer number (1920240).

Almost surely, 280275520 is an apocalyptic number.

80275520 is a gapful number since it is divisible by the number (80) 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 80275520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107533440).

80275520 is an abundant number, since it is smaller than the sum of its proper divisors (134791360).

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

80275520 is a wasteful number, since it uses less digits than its factorization.

80275520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892 (or 882 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 80275520 is about 8959.6607078617. The cubic root of 80275520 is about 431.3810294276.

The spelling of 80275520 in words is "eighty million, two hundred seventy-five thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 20 23 26 32 40 46 52 64 65 80 92 104 115 130 160 184 208 230 260 299 320 368 416 460 520 598 736 832 839 920 1040 1196 1472 1495 1678 1840 2080 2392 2990 3356 3680 4160 4195 4784 5980 6712 7360 8390 9568 10907 11960 13424 16780 19136 19297 21814 23920 26848 33560 38594 43628 47840 53696 54535 67120 77188 87256 95680 96485 109070 134240 154376 174512 192970 218140 250861 268480 308752 349024 385940 436280 501722 617504 698048 771880 872560 1003444 1235008 1254305 1543760 1745120 2006888 2508610 3087520 3490240 4013776 5017220 6175040 8027552 10034440 16055104 20068880 40137760 80275520