Search a number
-
+
1190028 = 223731457
BaseRepresentation
bin100100010100010001100
32020110102010
410202202030
5301040103
641301220
713054320
oct4424214
92213363
101190028
117430a4
12494810
13328878
1422d980
15187903
hex12288c

1190028 has 48 divisors (see below), whose sum is σ = 3282944. Its totient is φ = 328320.

The previous prime is 1190023. The next prime is 1190029. The reversal of 1190028 is 8200911.

1190028 is nontrivially palindromic in base 5.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1189986 and 1190013.

It is not an unprimeable number, because it can be changed into a prime (1190023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2376 + ... + 2832.

21190028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1190028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1641472).

1190028 is an abundant number, since it is smaller than the sum of its proper divisors (2092916).

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

1190028 is a wasteful number, since it uses less digits than its factorization.

1190028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 1190028 is about 1090.8840451670. The cubic root of 1190028 is about 105.9706813420.

Adding to 1190028 its reverse (8200911), we get a palindrome (9390939).

The spelling of 1190028 in words is "one million, one hundred ninety thousand, twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 31 42 62 84 93 124 186 217 372 434 457 651 868 914 1302 1371 1828 2604 2742 3199 5484 6398 9597 12796 14167 19194 28334 38388 42501 56668 85002 99169 170004 198338 297507 396676 595014 1190028