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1390160 = 24517377
BaseRepresentation
bin101010011011001010000
32121121221102
411103121100
5323441120
645443532
714546642
oct5233120
92547842
101390160
1186a4a2
125705a8
133989a5
14282892
151c6d75
hex153650

1390160 has 20 divisors (see below), whose sum is σ = 3232308. Its totient is φ = 556032.

The previous prime is 1390159. The next prime is 1390177. The reversal of 1390160 is 610931.

It can be written as a sum of positive squares in 2 ways, for example, as 258064 + 1132096 = 508^2 + 1064^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8609 + ... + 8768.

21390160 is an apocalyptic number.

1390160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1390160 is an abundant number, since it is smaller than the sum of its proper divisors (1842148).

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

1390160 is a wasteful number, since it uses less digits than its factorization.

1390160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17390 (or 17384 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 1390160 is about 1179.0504654170. The cubic root of 1390160 is about 111.6061849152.

The spelling of 1390160 in words is "one million, three hundred ninety thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 17377 34754 69508 86885 139016 173770 278032 347540 695080 1390160