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1690344 = 2332171381
BaseRepresentation
bin110011100101011101000
310011212201100
412130223220
5413042334
6100121400
720240055
oct6345350
93155640
101690344
11a54a87
12696260
13472506
1432002c
15235c99
hex19cae8

1690344 has 48 divisors (see below), whose sum is σ = 4850820. Its totient is φ = 529920.

The previous prime is 1690319. The next prime is 1690349. The reversal of 1690344 is 4430961.

It can be written as a sum of positive squares in 2 ways, for example, as 1664100 + 26244 = 1290^2 + 162^2 .

It is not an unprimeable number, because it can be changed into a prime (1690349) 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 11 ways as a sum of consecutive naturals, for example, 534 + ... + 1914.

21690344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1690344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2425410).

1690344 is an abundant number, since it is smaller than the sum of its proper divisors (3160476).

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

1690344 is a wasteful number, since it uses less digits than its factorization.

1690344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410 (or 1403 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1690344 is about 1300.1323009602. The cubic root of 1690344 is about 119.1219238573.

The spelling of 1690344 in words is "one million, six hundred ninety thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 17 18 24 34 36 51 68 72 102 136 153 204 306 408 612 1224 1381 2762 4143 5524 8286 11048 12429 16572 23477 24858 33144 46954 49716 70431 93908 99432 140862 187816 211293 281724 422586 563448 845172 1690344