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85105475 = 5271337409
BaseRepresentation
bin1010001001010…
…01101101000011
312221010210202122
411010221231003
5133241333400
612240034455
72052245630
oct504515503
9187123678
1085105475
1144049004
1224602a2b
131482a190
14b435187
157711685
hex5129b43

85105475 has 24 divisors (see below), whose sum is σ = 129887520. Its totient is φ = 53867520.

The previous prime is 85105469. The next prime is 85105483. The reversal of 85105475 is 57450158.

It is not a de Polignac number, because 85105475 - 26 = 85105411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16430 + ... + 20979.

It is an arithmetic number, because the mean of its divisors is an integer number (5411980).

Almost surely, 285105475 is an apocalyptic number.

85105475 is a deficient number, since it is larger than the sum of its proper divisors (44782045).

85105475 is a wasteful number, since it uses less digits than its factorization.

85105475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37439 (or 37434 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 85105475 is about 9225.2628688835. The cubic root of 85105475 is about 439.8647569883.

The spelling of 85105475 in words is "eighty-five million, one hundred five thousand, four hundred seventy-five".

Divisors: 1 5 7 13 25 35 65 91 175 325 455 2275 37409 187045 261863 486317 935225 1309315 2431585 3404219 6546575 12157925 17021095 85105475