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85909016286 = 2331590907709
BaseRepresentation
bin101000000000010010…
…0111000111011011110
322012202010222012111000
41100000210320323132
52401420202010121
6103244400211130
76130622406222
oct1200044707336
9265663865430
1085909016286
1133485444515
1214796909aa6
1381413c5c62
14422d862782
15237c133526
hex1400938ede

85909016286 has 16 divisors (see below), whose sum is σ = 190908925200. Its totient is φ = 28636338744.

The previous prime is 85909016273. The next prime is 85909016309. The reversal of 85909016286 is 68261090958.

It is a happy number.

85909016286 is a `hidden beast` number, since 8 + 5 + 9 + 0 + 9 + 0 + 1 + 628 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 1590907709 = 85909016286 / (8 + 5 + 9 + 0 + 9 + 0 + 1 + 6 + 2 + 8 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795453801 + ... + 795453908.

It is an arithmetic number, because the mean of its divisors is an integer number (11931807825).

Almost surely, 285909016286 is an apocalyptic number.

85909016286 is an abundant number, since it is smaller than the sum of its proper divisors (104999908914).

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

85909016286 is a wasteful number, since it uses less digits than its factorization.

85909016286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590907720 (or 1590907714 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

It can be divided in two parts, 8590 and 9016286, that added together give a triangular number (9024876 = T4248).

The spelling of 85909016286 in words is "eighty-five billion, nine hundred nine million, sixteen thousand, two hundred eighty-six".

Divisors: 1 2 3 6 9 18 27 54 1590907709 3181815418 4772723127 9545446254 14318169381 28636338762 42954508143 85909016286