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1293090 = 23543103
BaseRepresentation
bin100111011101100100010
32102200210020
410323230202
5312334330
643414310
713663641
oct4735442
92380706
101293090
11803577
12524396
13363756
14259358
151a8210
hex13bb22

1293090 has 16 divisors (see below), whose sum is σ = 3103488. Its totient is φ = 344816.

The previous prime is 1293077. The next prime is 1293119. The reversal of 1293090 is 903921.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1293090.

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 7 ways as a sum of consecutive naturals, for example, 21522 + ... + 21581.

It is an arithmetic number, because the mean of its divisors is an integer number (193968).

21293090 is an apocalyptic number.

1293090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1293090 is an abundant number, since it is smaller than the sum of its proper divisors (1810398).

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

1293090 is a wasteful number, since it uses less digits than its factorization.

1293090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43113.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 1293090 is about 1137.1411521882. The cubic root of 1293090 is about 108.9455722432.

The spelling of 1293090 in words is "one million, two hundred ninety-three thousand, ninety".

Divisors: 1 2 3 5 6 10 15 30 43103 86206 129309 215515 258618 431030 646545 1293090