Search a number
-
+
1030928640 = 2835725479
BaseRepresentation
bin111101011100101…
…011100100000000
32122211212121020020
4331130223210000
54102404204030
6250144213440
734355514600
oct7534534400
92584777206
101030928640
11489a28a45
1224930a280
13135778a61
149acbcc00
1560790510
hex3d72b900

1030928640 has 216 divisors, whose sum is σ = 3830783040. Its totient is φ = 235597824.

The previous prime is 1030928611. The next prime is 1030928663. The reversal of 1030928640 is 468290301.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185421 + ... + 190899.

Almost surely, 21030928640 is an apocalyptic number.

1030928640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1030928640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1915391520).

1030928640 is an abundant number, since it is smaller than the sum of its proper divisors (2799854400).

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

1030928640 is an equidigital number, since it uses as much as digits as its factorization.

1030928640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5517 (or 5496 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1030928640 is about 32108.0774883829. The cubic root of 1030928640 is about 1010.2050493724.

The spelling of 1030928640 in words is "one billion, thirty million, nine hundred twenty-eight thousand, six hundred forty".