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86109730 = 2573733247
BaseRepresentation
bin1010010000111…
…10111000100010
320000000211100021
411020132320202
5134021002410
612313344054
72063630530
oct510367042
9200024307
1086109730
1144674573
1224a0802a
1314abc305
14b617150
15785deda
hex521ee22

86109730 has 32 divisors (see below), whose sum is σ = 181933056. Its totient is φ = 28724544.

The previous prime is 86109707. The next prime is 86109731. The reversal of 86109730 is 3790168.

It is not an unprimeable number, because it can be changed into a prime (86109731) 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, 14034 + ... + 19213.

It is an arithmetic number, because the mean of its divisors is an integer number (5685408).

Almost surely, 286109730 is an apocalyptic number.

86109730 is an abundant number, since it is smaller than the sum of its proper divisors (95823326).

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

86109730 is a wasteful number, since it uses less digits than its factorization.

86109730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33298.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 86109730 is about 9279.5328546215. The cubic root of 86109730 is about 441.5881485357.

Adding to 86109730 its reverse (3790168), we get a palindrome (89899898).

The spelling of 86109730 in words is "eighty-six million, one hundred nine thousand, seven hundred thirty".

Divisors: 1 2 5 7 10 14 35 37 70 74 185 259 370 518 1295 2590 33247 66494 166235 232729 332470 465458 1163645 1230139 2327290 2460278 6150695 8610973 12301390 17221946 43054865 86109730