Base | Representation |
---|---|
bin | 1010011110011… |
… | …01101101011110 |
3 | 20010100111000100 |
4 | 11033031231132 |
5 | 134443440043 |
6 | 12415241530 |
7 | 2114630403 |
oct | 517155536 |
9 | 203314010 |
10 | 87874398 |
11 | 4566a377 |
12 | 255192a6 |
13 | 152895b1 |
14 | b9562aa |
15 | 7aabcd3 |
hex | 53cdb5e |
87874398 has 96 divisors (see below), whose sum is σ = 211341312. Its totient is φ = 26294400.
The previous prime is 87874393. The next prime is 87874433. The reversal of 87874398 is 89347878.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87874393) by changing a digit.
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 47 ways as a sum of consecutive naturals, for example, 526111 + ... + 526277.
It is an arithmetic number, because the mean of its divisors is an integer number (2201472).
Almost surely, 287874398 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 87874398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105670656).
87874398 is an abundant number, since it is smaller than the sum of its proper divisors (123466914).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87874398 is a wasteful number, since it uses less digits than its factorization.
87874398 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 270 (or 267 counting only the distinct ones).
The product of its digits is 2709504, while the sum is 54.
The square root of 87874398 is about 9374.1345200504. The cubic root of 87874398 is about 444.5842989083.
The spelling of 87874398 in words is "eighty-seven million, eight hundred seventy-four thousand, three hundred ninety-eight".
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