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104181380 = 2255209069
BaseRepresentation
bin1100011010110…
…10111010000100
321021000221222122
412031122322010
5203132301010
614200545112
72403345542
oct615327204
9237027878
10104181380
1153898016
122aa82198
1318778ab4
14db9cd92
15922d855
hex635ae84

104181380 has 12 divisors (see below), whose sum is σ = 218780940. Its totient is φ = 41672544.

The previous prime is 104181361. The next prime is 104181383. The reversal of 104181380 is 83181401.

It can be written as a sum of positive squares in 2 ways, for example, as 74063236 + 30118144 = 8606^2 + 5488^2 .

It is not an unprimeable number, because it can be changed into a prime (104181383) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2604515 + ... + 2604554.

It is an arithmetic number, because the mean of its divisors is an integer number (18231745).

Almost surely, 2104181380 is an apocalyptic number.

104181380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104181380 is an abundant number, since it is smaller than the sum of its proper divisors (114599560).

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

104181380 is a wasteful number, since it uses less digits than its factorization.

104181380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5209078 (or 5209076 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 104181380 is about 10206.9280393270. The cubic root of 104181380 is about 470.5401666404.

The spelling of 104181380 in words is "one hundred four million, one hundred eighty-one thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 5209069 10418138 20836276 26045345 52090690 104181380