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85704270 = 2352856809
BaseRepresentation
bin1010001101110…
…11111001001110
312222021020011020
411012323321032
5133420014040
612300535010
72060321451
oct506737116
9188236136
1085704270
1144417983
1224851466
13149a98b2
14b54d498
1577cdcd0
hex51bbe4e

85704270 has 16 divisors (see below), whose sum is σ = 205690320. Its totient is φ = 22854464.

The previous prime is 85704239. The next prime is 85704271. The reversal of 85704270 is 7240758.

It is a super-3 number, since 3×857042703 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85704271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1428375 + ... + 1428434.

It is an arithmetic number, because the mean of its divisors is an integer number (12855645).

Almost surely, 285704270 is an apocalyptic number.

85704270 is an abundant number, since it is smaller than the sum of its proper divisors (119986050).

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

85704270 is a wasteful number, since it uses less digits than its factorization.

85704270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2856819.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 85704270 is about 9257.6600715300. The cubic root of 85704270 is about 440.8939641506.

The spelling of 85704270 in words is "eighty-five million, seven hundred four thousand, two hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 2856809 5713618 8570427 14284045 17140854 28568090 42852135 85704270