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1342830 = 235172633
BaseRepresentation
bin101000111110101101110
32112020000110
411013311232
5320432310
644440450
714261646
oct5076556
92466013
101342830
11837985
12549126
13380298
1426d526
151b7d20
hex147d6e

1342830 has 32 divisors (see below), whose sum is σ = 3413664. Its totient is φ = 336896.

The previous prime is 1342829. The next prime is 1342849. The reversal of 1342830 is 382431.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1342797 and 1342806.

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, 807 + ... + 1826.

It is an arithmetic number, because the mean of its divisors is an integer number (106677).

21342830 is an apocalyptic number.

1342830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1342830 is an abundant number, since it is smaller than the sum of its proper divisors (2070834).

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

1342830 is a wasteful number, since it uses less digits than its factorization.

1342830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2660.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1342830 is about 1158.8054193867. The cubic root of 1342830 is about 110.3249345312.

The spelling of 1342830 in words is "one million, three hundred forty-two thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 255 510 2633 5266 7899 13165 15798 26330 39495 44761 78990 89522 134283 223805 268566 447610 671415 1342830