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1342390 = 257127151
BaseRepresentation
bin101000111101110110110
32112012102011
411013232312
5320424030
644434434
714260450
oct5075666
92465364
101342390
11837615
12548a1a
1338001a
1426d2d0
151b7b2a
hex147bb6

1342390 has 32 divisors (see below), whose sum is σ = 2801664. Its totient is φ = 453600.

The previous prime is 1342379. The next prime is 1342403. The reversal of 1342390 is 932431.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8815 + ... + 8965.

It is an arithmetic number, because the mean of its divisors is an integer number (87552).

21342390 is an apocalyptic number.

1342390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1342390 is an abundant number, since it is smaller than the sum of its proper divisors (1459274).

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

1342390 is a wasteful number, since it uses less digits than its factorization.

1342390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1342390 is about 1158.6155531495. The cubic root of 1342390 is about 110.3128832976.

The spelling of 1342390 in words is "one million, three hundred forty-two thousand, three hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 127 151 254 302 635 755 889 1057 1270 1510 1778 2114 4445 5285 8890 10570 19177 38354 95885 134239 191770 268478 671195 1342390