Search a number
-
+
671368480 = 25529314321
BaseRepresentation
bin101000000001000…
…100010100100000
31201210022001102021
4220001010110200
52333332242410
6150341431224
722431352336
oct5001042440
91653261367
10671368480
11314a74092
12168a0b514
13a9126273
1465243b56
153de18eda
hex28044520

671368480 has 48 divisors (see below), whose sum is σ = 1591632504. Its totient is φ = 267612160.

The previous prime is 671368463. The next prime is 671368507. The reversal of 671368480 is 84863176.

It can be written as a sum of positive squares in 4 ways, for example, as 501222544 + 170145936 = 22388^2 + 13044^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39720 + ... + 54040.

Almost surely, 2671368480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671368480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (795816252).

671368480 is an abundant number, since it is smaller than the sum of its proper divisors (920264024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671368480 is a wasteful number, since it uses less digits than its factorization.

671368480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14629 (or 14621 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 671368480 is about 25910.7792240990. The cubic root of 671368480 is about 875.6293616320.

The spelling of 671368480 in words is "six hundred seventy-one million, three hundred sixty-eight thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 293 586 1172 1465 2344 2930 4688 5860 9376 11720 14321 23440 28642 46880 57284 71605 114568 143210 229136 286420 458272 572840 1145680 2291360 4196053 8392106 16784212 20980265 33568424 41960530 67136848 83921060 134273696 167842120 335684240 671368480