Search a number
-
+
86450080 = 2551094957
BaseRepresentation
bin1010010011100…
…01111110100000
320000200010012211
411021301332200
5134112400310
612324531504
72066546023
oct511617640
9200603184
1086450080
1144887252
1224b50b94
1314bab1c2
14b6a51ba
1578c9c8a
hex5271fa0

86450080 has 48 divisors (see below), whose sum is σ = 206153640. Its totient is φ = 34255872.

The previous prime is 86450071. The next prime is 86450113. The reversal of 86450080 is 8005468.

It can be written as a sum of positive squares in 4 ways, for example, as 83978896 + 2471184 = 9164^2 + 1572^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14962 + ... + 19918.

Almost surely, 286450080 is an apocalyptic number.

86450080 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 86450080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103076820).

86450080 is an abundant number, since it is smaller than the sum of its proper divisors (119703560).

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

86450080 is a wasteful number, since it uses less digits than its factorization.

86450080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5081 (or 5073 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 86450080 is about 9297.8535157315. The cubic root of 86450080 is about 442.1691782917.

The spelling of 86450080 in words is "eighty-six million, four hundred fifty thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 109 160 218 436 545 872 1090 1744 2180 3488 4360 4957 8720 9914 17440 19828 24785 39656 49570 79312 99140 158624 198280 396560 540313 793120 1080626 2161252 2701565 4322504 5403130 8645008 10806260 17290016 21612520 43225040 86450080