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86740090 = 258674009
BaseRepresentation
bin1010010101110…
…00110001111010
320001012212000221
411022320301322
5134201140330
612335050254
72102164363
oct512706172
9201185027
1086740090
1144a65128
122507098a
1314c801c8
14b73cb6a
157935b7a
hex52b8c7a

86740090 has 8 divisors (see below), whose sum is σ = 156132180. Its totient is φ = 34696032.

The previous prime is 86740079. The next prime is 86740091. The reversal of 86740090 is 9004768.

It can be written as a sum of positive squares in 2 ways, for example, as 86694721 + 45369 = 9311^2 + 213^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (86740091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4336995 + ... + 4337014.

Almost surely, 286740090 is an apocalyptic number.

86740090 is a deficient number, since it is larger than the sum of its proper divisors (69392090).

86740090 is a wasteful number, since it uses less digits than its factorization.

86740090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8674016.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 86740090 is about 9313.4359932304. The cubic root of 86740090 is about 442.6630677791.

The spelling of 86740090 in words is "eighty-six million, seven hundred forty thousand, ninety".

Divisors: 1 2 5 10 8674009 17348018 43370045 86740090