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1202130 = 232519237
BaseRepresentation
bin100100101011111010010
32021002000100
410211133102
5301432010
641433230
713134516
oct4453722
92232010
101202130
117511a6
1249b816
13331227
14234146
1518b2c0
hex1257d2

1202130 has 72 divisors (see below), whose sum is σ = 3387852. Its totient is φ = 295488.

The previous prime is 1202129. The next prime is 1202147. The reversal of 1202130 is 312021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1172889 + 29241 = 1083^2 + 171^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 32472 + ... + 32508.

21202130 is an apocalyptic number.

1202130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1202130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1693926).

1202130 is an abundant number, since it is smaller than the sum of its proper divisors (2185722).

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

1202130 is a wasteful number, since it uses less digits than its factorization.

1202130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1202130 is about 1096.4168915153. The cubic root of 1202130 is about 106.3286937198.

Adding to 1202130 its reverse (312021), we get a palindrome (1514151).

The spelling of 1202130 in words is "one million, two hundred two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 19 30 37 38 45 57 74 90 95 111 114 171 185 190 222 285 333 342 361 370 555 570 666 703 722 855 1083 1110 1406 1665 1710 1805 2109 2166 3249 3330 3515 3610 4218 5415 6327 6498 7030 10545 10830 12654 13357 16245 21090 26714 31635 32490 40071 63270 66785 80142 120213 133570 200355 240426 400710 601065 1202130