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1312948 = 227133607
BaseRepresentation
bin101000000100010110100
32110201000201
411000202310
5314003243
644050244
714105560
oct5004264
92421021
101312948
1181748a
12533984
1336c7c0
142626a0
151ae04d
hex1408b4

1312948 has 24 divisors (see below), whose sum is σ = 2828672. Its totient is φ = 519264.

The previous prime is 1312937. The next prime is 1312951. The reversal of 1312948 is 8492131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

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, 1440 + ... + 2167.

21312948 is an apocalyptic number.

It is an amenable number.

1312948 is an abundant number, since it is smaller than the sum of its proper divisors (1515724).

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

1312948 is a wasteful number, since it uses less digits than its factorization.

1312948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3631 (or 3629 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 1312948 is about 1145.8394302868. The cubic root of 1312948 is about 109.5004343790.

The spelling of 1312948 in words is "one million, three hundred twelve thousand, nine hundred forty-eight".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 3607 7214 14428 25249 46891 50498 93782 100996 187564 328237 656474 1312948