Search a number
-
+
85290942 = 23116531979
BaseRepresentation
bin1010001010101…
…10111110111110
312221111020011210
411011112332332
5133313302232
612244025250
72053650432
oct505267676
9187436153
1085290942
1144165390
1224692226
1314893719
14b4829c2
15774b5cc
hex5156fbe

85290942 has 32 divisors (see below), whose sum is σ = 186468480. Its totient is φ = 25793120.

The previous prime is 85290941. The next prime is 85290949. The reversal of 85290942 is 24909258.

It is a self number, because there is not a number n which added to its sum of digits gives 85290942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85290941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42109 + ... + 44087.

It is an arithmetic number, because the mean of its divisors is an integer number (5827140).

Almost surely, 285290942 is an apocalyptic number.

85290942 is an abundant number, since it is smaller than the sum of its proper divisors (101177538).

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

85290942 is a wasteful number, since it uses less digits than its factorization.

85290942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2648.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 85290942 is about 9235.3095237788. The cubic root of 85290942 is about 440.1840517884.

The spelling of 85290942 in words is "eighty-five million, two hundred ninety thousand, nine hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 653 1306 1959 1979 3918 3958 5937 7183 11874 14366 21549 21769 43098 43538 65307 130614 1292287 2584574 3876861 7753722 14215157 28430314 42645471 85290942