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85194850 = 25213532473
BaseRepresentation
bin1010001001111…
…11100001100010
312221022100100211
411010333201202
5133302213400
612242004334
72053100326
oct504774142
9187270324
1085194850
11440aa174
12246466aa
131485ba70
14b459986
15772cdba
hex513f862

85194850 has 48 divisors (see below), whose sum is σ = 173941992. Its totient is φ = 30850560.

The previous prime is 85194847. The next prime is 85194853. The reversal of 85194850 is 5849158.

It is an interprime number because it is at equal distance from previous prime (85194847) and next prime (85194853).

It can be written as a sum of positive squares in 12 ways, for example, as 7349521 + 77845329 = 2711^2 + 8823^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (85194853) 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 23 ways as a sum of consecutive naturals, for example, 33214 + ... + 35686.

Almost surely, 285194850 is an apocalyptic number.

85194850 is an abundant number, since it is smaller than the sum of its proper divisors (88747142).

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

85194850 is a wasteful number, since it uses less digits than its factorization.

85194850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551 (or 2546 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 85194850 is about 9230.1056331984. The cubic root of 85194850 is about 440.0186803364.

The spelling of 85194850 in words is "eighty-five million, one hundred ninety-four thousand, eight hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 53 65 106 130 265 325 530 650 689 1325 1378 2473 2650 3445 4946 6890 12365 17225 24730 32149 34450 61825 64298 123650 131069 160745 262138 321490 655345 803725 1310690 1607450 1703897 3276725 3407794 6553450 8519485 17038970 42597425 85194850