Search a number
-
+
1030240 = 25547137
BaseRepresentation
bin11111011100001100000
31221100020001
43323201200
5230431430
634025344
711520421
oct3734140
91840201
101030240
11644042
12418254
132a0c13
141cb648
151553ca
hexfb860

1030240 has 48 divisors (see below), whose sum is σ = 2503872. Its totient is φ = 400384.

The previous prime is 1030219. The next prime is 1030241. The reversal of 1030240 is 420301.

1030240 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 2×10302402 = 2122788915200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7452 + ... + 7588.

It is an arithmetic number, because the mean of its divisors is an integer number (52164).

21030240 is an apocalyptic number.

1030240 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 1030240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1251936).

1030240 is an abundant number, since it is smaller than the sum of its proper divisors (1473632).

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

1030240 is a wasteful number, since it uses less digits than its factorization.

1030240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1030240 is about 1015.0073891357. The cubic root of 1030240 is about 100.9980066920.

Adding to 1030240 its reverse (420301), we get a palindrome (1450541).

The spelling of 1030240 in words is "one million, thirty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 47 80 94 137 160 188 235 274 376 470 548 685 752 940 1096 1370 1504 1880 2192 2740 3760 4384 5480 6439 7520 10960 12878 21920 25756 32195 51512 64390 103024 128780 206048 257560 515120 1030240