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85756950 = 232521491279
BaseRepresentation
bin1010001110010…
…00110000010110
312222100220102100
411013020300112
5133423210300
612302022530
72060631156
oct507106026
9188326370
1085756950
1144453514
1224877a46
13149c7876
14b564766
1577de700
hex51c8c16

85756950 has 72 divisors (see below), whose sum is σ = 232128000. Its totient is φ = 22697280.

The previous prime is 85756939. The next prime is 85756961. The reversal of 85756950 is 5965758.

85756950 is a `hidden beast` number, since 85 + 7 + 569 + 5 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (85756939) and next prime (85756961).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 85756896 and 85756905.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 66411 + ... + 67689.

It is an arithmetic number, because the mean of its divisors is an integer number (3224000).

Almost surely, 285756950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85756950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116064000).

85756950 is an abundant number, since it is smaller than the sum of its proper divisors (146371050).

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

85756950 is a wasteful number, since it uses less digits than its factorization.

85756950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446 (or 1438 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The square root of 85756950 is about 9260.5048458494. The cubic root of 85756950 is about 440.9842806805.

The spelling of 85756950 in words is "eighty-five million, seven hundred fifty-six thousand, nine hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 30 45 50 75 90 149 150 225 298 447 450 745 894 1279 1341 1490 2235 2558 2682 3725 3837 4470 6395 6705 7450 7674 11175 11511 12790 13410 19185 22350 23022 31975 33525 38370 57555 63950 67050 95925 115110 190571 191850 287775 381142 571713 575550 952855 1143426 1715139 1905710 2858565 3430278 4764275 5717130 8575695 9528550 14292825 17151390 28585650 42878475 85756950