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85190025 = 3521378291
BaseRepresentation
bin1010001001111…
…10010110001001
312221022002202010
411010332112021
5133302040100
612241530133
72053050264
oct504762611
9187262663
1085190025
11440a6588
1224643949
13148597cb
14b457cdb
15772b750
hex513e589

85190025 has 24 divisors (see below), whose sum is σ = 141892704. Its totient is φ = 45097600.

The previous prime is 85189987. The next prime is 85190033. The reversal of 85190025 is 52009158.

It is not a de Polignac number, because 85190025 - 224 = 68412809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85189974 and 85190001.

It is an unprimeable number.

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, 6130 + ... + 14420.

It is an arithmetic number, because the mean of its divisors is an integer number (5912196).

Almost surely, 285190025 is an apocalyptic number.

It is an amenable number.

85190025 is a deficient number, since it is larger than the sum of its proper divisors (56702679).

85190025 is a wasteful number, since it uses less digits than its factorization.

85190025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8441 (or 8436 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 85190025 is about 9229.8442565408. The cubic root of 85190025 is about 440.0103733780.

The spelling of 85190025 in words is "eighty-five million, one hundred ninety thousand, twenty-five".

Divisors: 1 3 5 15 25 75 137 411 685 2055 3425 8291 10275 24873 41455 124365 207275 621825 1135867 3407601 5679335 17038005 28396675 85190025