Base | Representation |
---|---|
bin | 1010001111001… |
… | …10111010000110 |
3 | 12222121011211120 |
4 | 11013212322012 |
5 | 133441133304 |
6 | 12304414410 |
7 | 2061654222 |
oct | 507467206 |
9 | 188534746 |
10 | 85880454 |
11 | 44528290 |
12 | 24917406 |
13 | 14a3bb4a |
14 | b597782 |
15 | 78160d9 |
hex | 51e6e86 |
85880454 has 16 divisors (see below), whose sum is σ = 187375680. Its totient is φ = 26024360.
The previous prime is 85880449. The next prime is 85880467. The reversal of 85880454 is 45408858.
It is a super-5 number, since 5×858804545 (a number of 41 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.
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, 650544 + ... + 650675.
It is an arithmetic number, because the mean of its divisors is an integer number (11710980).
Almost surely, 285880454 is an apocalyptic number.
85880454 is an abundant number, since it is smaller than the sum of its proper divisors (101495226).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
85880454 is a wasteful number, since it uses less digits than its factorization.
85880454 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1301235.
The product of its (nonzero) digits is 204800, while the sum is 42.
The square root of 85880454 is about 9267.1707656652. The cubic root of 85880454 is about 441.1958755742.
It can be divided in two parts, 858804 and 54, that added together give a palindrome (858858).
The spelling of 85880454 in words is "eighty-five million, eight hundred eighty thousand, four hundred fifty-four".
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