Search a number
-
+
6681248 = 25724261
BaseRepresentation
bin11001011111001010100000
3110120102221122
4121133022200
53202244443
6355111412
7110534600
oct31371240
913512848
106681248
1138537a2
1222a2568
1314cc102
14c5cc00
158be968
hex65f2a0

6681248 has 36 divisors (see below), whose sum is σ = 15304842. Its totient is φ = 2862720.

The previous prime is 6681239. The next prime is 6681287. The reversal of 6681248 is 8421866.

It can be written as a sum of positive squares in only one way, i.e., 3952144 + 2729104 = 1988^2 + 1652^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 563 + ... + 3698.

Almost surely, 26681248 is an apocalyptic number.

It is an amenable number.

6681248 is an abundant number, since it is smaller than the sum of its proper divisors (8623594).

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

6681248 is a wasteful number, since it uses less digits than its factorization.

6681248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4285 (or 4270 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 6681248 is about 2584.8110182371. The cubic root of 6681248 is about 188.3443214584.

The spelling of 6681248 in words is "six million, six hundred eighty-one thousand, two hundred forty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 98 112 196 224 392 784 1568 4261 8522 17044 29827 34088 59654 68176 119308 136352 208789 238616 417578 477232 835156 954464 1670312 3340624 6681248