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1350640 = 24516883
BaseRepresentation
bin101001001101111110000
32112121201201
411021233300
5321210030
644540544
714323504
oct5115760
92477651
101350640
11842835
12551754
133839c5
14272304
151ba2ca
hex149bf0

1350640 has 20 divisors (see below), whose sum is σ = 3140424. Its totient is φ = 540224.

The previous prime is 1350623. The next prime is 1350641. The reversal of 1350640 is 460531.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1350641) 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 3 ways as a sum of consecutive naturals, for example, 8362 + ... + 8521.

21350640 is an apocalyptic number.

1350640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1350640 is an abundant number, since it is smaller than the sum of its proper divisors (1789784).

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

1350640 is a wasteful number, since it uses less digits than its factorization.

1350640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16896 (or 16890 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1350640 is about 1162.1703833776. The cubic root of 1350640 is about 110.5384072382.

It can be divided in two parts, 13 and 50640, that added together give a cube (50653 = 373).

The spelling of 1350640 in words is "one million, three hundred fifty thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 16883 33766 67532 84415 135064 168830 270128 337660 675320 1350640