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1342369 = 71910093
BaseRepresentation
bin101000111101110100001
32112012101101
411013232201
5320423434
644434401
714260420
oct5075641
92465341
101342369
118375a6
12548a01
13380002
1426d2b7
151b7b14
hex147ba1

1342369 has 8 divisors (see below), whose sum is σ = 1615040. Its totient is φ = 1089936.

The previous prime is 1342361. The next prime is 1342379. The reversal of 1342369 is 9632431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1342369 - 23 = 1342361 is a prime.

It is a super-2 number, since 2×13423692 = 3603909064322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1342361) by changing a digit.

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, 4914 + ... + 5179.

It is an arithmetic number, because the mean of its divisors is an integer number (201880).

21342369 is an apocalyptic number.

1342369 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1342369 is a deficient number, since it is larger than the sum of its proper divisors (272671).

1342369 is a wasteful number, since it uses less digits than its factorization.

1342369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10119.

The product of its digits is 3888, while the sum is 28.

The square root of 1342369 is about 1158.6064905739. The cubic root of 1342369 is about 110.3123080593.

Subtracting from 1342369 its sum of digits (28), we obtain a triangular number (1342341 = T1638).

It can be divided in two parts, 1342 and 369, that added together give a triangular number (1711 = T58).

The spelling of 1342369 in words is "one million, three hundred forty-two thousand, three hundred sixty-nine".

Divisors: 1 7 19 133 10093 70651 191767 1342369