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85348220 = 22559151479
BaseRepresentation
bin1010001011001…
…00111101111100
312221121010202012
411011210331330
5133322120340
612245150352
72054306426
oct505447574
9187533665
1085348220
11441a4421
12246bb3b8
13148b3809
14b499816
15775d565
hex5164f7c

85348220 has 48 divisors (see below), whose sum is σ = 183859200. Its totient is φ = 33268800.

The previous prime is 85348213. The next prime is 85348223. The reversal of 85348220 is 2284358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85348223) 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, 177941 + ... + 178419.

It is an arithmetic number, because the mean of its divisors is an integer number (3830400).

Almost surely, 285348220 is an apocalyptic number.

It is an amenable number.

85348220 is an abundant number, since it is smaller than the sum of its proper divisors (98510980).

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

85348220 is a wasteful number, since it uses less digits than its factorization.

85348220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 85348220 is about 9238.4100363645. The cubic root of 85348220 is about 440.2825664319.

The spelling of 85348220 in words is "eighty-five million, three hundred forty-eight thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 59 118 151 236 295 302 479 590 604 755 958 1180 1510 1916 2395 3020 4790 8909 9580 17818 28261 35636 44545 56522 72329 89090 113044 141305 144658 178180 282610 289316 361645 565220 723290 1446580 4267411 8534822 17069644 21337055 42674110 85348220