Base | Representation |
---|---|
bin | 11000010100100… |
… | …000111101101000 |
3 | 1001102210010102020 |
4 | 120110200331220 |
5 | 1313423443310 |
6 | 104253304440 |
7 | 13053130662 |
oct | 3024407550 |
9 | 1042703366 |
10 | 408031080 |
11 | 19a360876 |
12 | b4795120 |
13 | 666c3c12 |
14 | 3c295532 |
15 | 25c4d170 |
hex | 18520f68 |
408031080 has 96 divisors (see below), whose sum is σ = 1292047200. Its totient is φ = 103070592.
The previous prime is 408031069. The next prime is 408031097. The reversal of 408031080 is 80130804.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a self number, because there is not a number n which added to its sum of digits gives 408031080.
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, 38611 + ... + 48029.
It is an arithmetic number, because the mean of its divisors is an integer number (13458825).
Almost surely, 2408031080 is an apocalyptic number.
408031080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 408031080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (646023600).
408031080 is an abundant number, since it is smaller than the sum of its proper divisors (884016120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
408031080 is a wasteful number, since it uses less digits than its factorization.
408031080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9471 (or 9448 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 24.
The square root of 408031080 is about 20199.7792067141. The cubic root of 408031080 is about 741.7047863811.
Adding to 408031080 its reverse (80130804), we get a palindrome (488161884).
The spelling of 408031080 in words is "four hundred eight million, thirty-one thousand, eighty".
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