Base | Representation |
---|---|
bin | 1010100100010… |
… | …00011110111000 |
3 | 20011210100102100 |
4 | 11102020132320 |
5 | 140142430131 |
6 | 12443503400 |
7 | 2124264645 |
oct | 522103670 |
9 | 204710370 |
10 | 88639416 |
11 | 46042118 |
12 | 25827b60 |
13 | 15496878 |
14 | bab4dcc |
15 | 7bad7e6 |
hex | 54887b8 |
88639416 has 96 divisors (see below), whose sum is σ = 250398720. Its totient is φ = 28296000.
The previous prime is 88639393. The next prime is 88639423. The reversal of 88639416 is 61493688.
88639416 is a `hidden beast` number, since 8 + 8 + 639 + 4 + 1 + 6 = 666.
It is a super-3 number, since 3×886394163 (a number of 25 digits) contains 333 as substring.
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
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, 336901 + ... + 337163.
It is an arithmetic number, because the mean of its divisors is an integer number (2608320).
Almost surely, 288639416 is an apocalyptic number.
88639416 is the 5436-th octagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 88639416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125199360).
88639416 is an abundant number, since it is smaller than the sum of its proper divisors (161759304).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
88639416 is a wasteful number, since it uses less digits than its factorization.
88639416 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 457 (or 450 counting only the distinct ones).
The product of its digits is 248832, while the sum is 45.
The square root of 88639416 is about 9414.8508219727. The cubic root of 88639416 is about 445.8707287545.
The spelling of 88639416 in words is "eighty-eight million, six hundred thirty-nine thousand, four hundred sixteen".
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