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1313490 = 23543783
BaseRepresentation
bin101000000101011010010
32110201202210
411000223102
5314012430
644052550
714110263
oct5005322
92421683
101313490
11817932
12534156
1336cb19
1426296a
151ae2b0
hex140ad2

1313490 has 16 divisors (see below), whose sum is σ = 3152448. Its totient is φ = 350256.

The previous prime is 1313467. The next prime is 1313567. The reversal of 1313490 is 943131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21862 + ... + 21921.

It is an arithmetic number, because the mean of its divisors is an integer number (197028).

21313490 is an apocalyptic number.

1313490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313490 is an abundant number, since it is smaller than the sum of its proper divisors (1838958).

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

1313490 is a wasteful number, since it uses less digits than its factorization.

1313490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43793.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1313490 is about 1146.0759137160. The cubic root of 1313490 is about 109.5154999847.

The spelling of 1313490 in words is "one million, three hundred thirteen thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 43783 87566 131349 218915 262698 437830 656745 1313490