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85901043678 = 23192332761649
BaseRepresentation
bin101000000000000011…
…0011110011111011110
322012201120222011010020
41100000012132133132
52401411131344203
6103243513253010
76130464552402
oct1200006363736
9265646864106
1085901043678
113348099958a
1214794104166
13813c864138
14422c789102
15237b5ab153
hex140019e7de

85901043678 has 32 divisors (see below), whose sum is σ = 188707104000. Its totient is φ = 25947225216.

The previous prime is 85901043647. The next prime is 85901043689. The reversal of 85901043678 is 87634010958.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85901043678.

It is a congruent number.

It is an unprimeable number.

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, 16378203 + ... + 16383446.

It is an arithmetic number, because the mean of its divisors is an integer number (5897097000).

Almost surely, 285901043678 is an apocalyptic number.

85901043678 is an abundant number, since it is smaller than the sum of its proper divisors (102806060322).

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

85901043678 is a wasteful number, since it uses less digits than its factorization.

85901043678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32761696.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 85901043678 in words is "eighty-five billion, nine hundred one million, forty-three thousand, six hundred seventy-eight".

Divisors: 1 2 3 6 19 23 38 46 57 69 114 138 437 874 1311 2622 32761649 65523298 98284947 196569894 622471331 753517927 1244942662 1507035854 1867413993 2260553781 3734827986 4521107562 14316840613 28633681226 42950521839 85901043678