Search a number
-
+
1030231500 = 22353733937
BaseRepresentation
bin111101011010000…
…001010111001100
32122210120011221020
4331122001113030
54102214402000
6250121234140
734346552244
oct7532012714
92583504836
101030231500
114895a21a1
12249032950
1313559364c
149ab7ab24
15606a3ba0
hex3d6815cc

1030231500 has 96 divisors (see below), whose sum is σ = 3007333056. Its totient is φ = 274060800.

The previous prime is 1030231487. The next prime is 1030231507. The reversal of 1030231500 is 51320301.

It is a happy number.

1030231500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10302315002 = 2122753887184500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1030231500.

It is not an unprimeable number, because it can be changed into a prime (1030231507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1099032 + ... + 1099968.

It is an arithmetic number, because the mean of its divisors is an integer number (31326386).

Almost surely, 21030231500 is an apocalyptic number.

1030231500 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 1030231500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1503666528).

1030231500 is an abundant number, since it is smaller than the sum of its proper divisors (1977101556).

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

1030231500 is a wasteful number, since it uses less digits than its factorization.

1030231500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692 (or 1680 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1030231500 is about 32097.2195057454. The cubic root of 1030231500 is about 1009.9772892975.

Adding to 1030231500 its reverse (51320301), we get a palindrome (1081551801).

The spelling of 1030231500 in words is "one billion, thirty million, two hundred thirty-one thousand, five hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 125 150 250 300 375 500 733 750 937 1466 1500 1874 2199 2811 2932 3665 3748 4398 4685 5622 7330 8796 9370 10995 11244 14055 14660 18325 18740 21990 23425 28110 36650 43980 46850 54975 56220 70275 73300 91625 93700 109950 117125 140550 183250 219900 234250 274875 281100 351375 366500 468500 549750 686821 702750 1099500 1373642 1405500 2060463 2747284 3434105 4120926 6868210 8241852 10302315 13736420 17170525 20604630 34341050 41209260 51511575 68682100 85852625 103023150 171705250 206046300 257557875 343410500 515115750 1030231500