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85189629 = 3767191317
BaseRepresentation
bin1010001001111…
…10001111111101
312221022002012110
411010332033331
5133302032004
612241524233
72053046160
oct504761775
9187262173
1085189629
11440a6258
1224643679
1314859585
14b457ad7
15772b589
hex513e3fd

85189629 has 32 divisors (see below), whose sum is σ = 132857856. Its totient is φ = 47551680.

The previous prime is 85189627. The next prime is 85189633. The reversal of 85189629 is 92698158.

It is a happy number.

It is not a de Polignac number, because 85189629 - 21 = 85189627 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85189627) 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 31 ways as a sum of consecutive naturals, for example, 268579 + ... + 268895.

It is an arithmetic number, because the mean of its divisors is an integer number (4151808).

Almost surely, 285189629 is an apocalyptic number.

It is an amenable number.

85189629 is a deficient number, since it is larger than the sum of its proper divisors (47668227).

85189629 is a wasteful number, since it uses less digits than its factorization.

85189629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585.

The product of its digits is 311040, while the sum is 48.

The square root of 85189629 is about 9229.8228043663. The cubic root of 85189629 is about 440.0096915909.

The spelling of 85189629 in words is "eighty-five million, one hundred eighty-nine thousand, six hundred twenty-nine".

Divisors: 1 3 7 21 67 191 201 317 469 573 951 1337 1407 2219 4011 6657 12797 21239 38391 60547 63717 89579 148673 181641 268737 423829 446019 1271487 4056649 12169947 28396543 85189629