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1313148 = 2231741157
BaseRepresentation
bin101000000100101111100
32110201022010
411000211330
5314010043
644051220
714106264
oct5004574
92421263
101313148
11817651
12533b10
1336c915
142627a4
151ae133
hex14097c

1313148 has 48 divisors (see below), whose sum is σ = 3344544. Its totient is φ = 399360.

The previous prime is 1313141. The next prime is 1313153. The reversal of 1313148 is 8413131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8286 + ... + 8442.

It is an arithmetic number, because the mean of its divisors is an integer number (69678).

21313148 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 1313148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1672272).

1313148 is an abundant number, since it is smaller than the sum of its proper divisors (2031396).

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

1313148 is a wasteful number, since it uses less digits than its factorization.

1313148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 220 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 1313148 is about 1145.9266992264. The cubic root of 1313148 is about 109.5059941257.

Adding to 1313148 its reverse (8413131), we get a palindrome (9726279).

The spelling of 1313148 in words is "one million, three hundred thirteen thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 17 34 41 51 68 82 102 123 157 164 204 246 314 471 492 628 697 942 1394 1884 2091 2669 2788 4182 5338 6437 8007 8364 10676 12874 16014 19311 25748 32028 38622 77244 109429 218858 328287 437716 656574 1313148