Search a number
-
+
1083729388 = 22738704621
BaseRepresentation
bin100000010011000…
…0110010111101100
32210112020011020111
41000212012113230
54204413320023
6255312025404
735566355620
oct10046062754
92715204214
101083729388
11506811a25
12262b32264
131436a4bc1
14a3d05180
156522000d
hex409865ec

1083729388 has 12 divisors (see below), whose sum is σ = 2167458832. Its totient is φ = 464455440.

The previous prime is 1083729373. The next prime is 1083729389. The reversal of 1083729388 is 8839273801.

1083729388 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1083729389) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 19352283 + ... + 19352338.

Almost surely, 21083729388 is an apocalyptic number.

It is an amenable number.

1083729388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1083729388 is a wasteful number, since it uses less digits than its factorization.

1083729388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38704632 (or 38704630 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 1083729388 is about 32920.0453827148. The cubic root of 1083729388 is about 1027.1651675280.

The spelling of 1083729388 in words is "one billion, eighty-three million, seven hundred twenty-nine thousand, three hundred eighty-eight".

Divisors: 1 2 4 7 14 28 38704621 77409242 154818484 270932347 541864694 1083729388