Search a number
-
+
80853480 = 233251072099
BaseRepresentation
bin1001101000110…
…11100111101000
312122010210010100
410310123213220
5131144302410
612004545400
72001146301
oct464334750
9178123110
1080853480
1141704464
12230b2260
131399b9c6
14aa497a8
1571718c0
hex4d1b9e8

80853480 has 96 divisors (see below), whose sum is σ = 265356000. Its totient is φ = 21349248.

The previous prime is 80853467. The next prime is 80853491. The reversal of 80853480 is 8435808.

It is a super-2 number, since 2×808534802 = 13074570456220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 37471 + ... + 39569.

It is an arithmetic number, because the mean of its divisors is an integer number (2764125).

Almost surely, 280853480 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 80853480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132678000).

80853480 is an abundant number, since it is smaller than the sum of its proper divisors (184502520).

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

80853480 is a wasteful number, since it uses less digits than its factorization.

80853480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223 (or 2216 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 80853480 is about 8991.8563155780. The cubic root of 80853480 is about 432.4138267065.

The spelling of 80853480 in words is "eighty million, eight hundred fifty-three thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 107 120 180 214 321 360 428 535 642 856 963 1070 1284 1605 1926 2099 2140 2568 3210 3852 4198 4280 4815 6297 6420 7704 8396 9630 10495 12594 12840 16792 18891 19260 20990 25188 31485 37782 38520 41980 50376 62970 75564 83960 94455 125940 151128 188910 224593 251880 377820 449186 673779 755640 898372 1122965 1347558 1796744 2021337 2245930 2695116 3368895 4042674 4491860 5390232 6737790 8085348 8983720 10106685 13475580 16170696 20213370 26951160 40426740 80853480