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1161230 = 25753313
BaseRepresentation
bin100011011100000001110
32011222220112
410123200032
5244124410
640520022
712604340
oct4334016
92158815
101161230
117234a4
12480012
13318725
14223290
1517e105
hex11b80e

1161230 has 32 divisors (see below), whose sum is σ = 2441664. Its totient is φ = 389376.

The previous prime is 1161227. The next prime is 1161233. The reversal of 1161230 is 321611.

It is an interprime number because it is at equal distance from previous prime (1161227) and next prime (1161233).

It is a super-2 number, since 2×11612302 = 2696910225800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3554 + ... + 3866.

It is an arithmetic number, because the mean of its divisors is an integer number (76302).

21161230 is an apocalyptic number.

1161230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161230 is an abundant number, since it is smaller than the sum of its proper divisors (1280434).

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

1161230 is a wasteful number, since it uses less digits than its factorization.

1161230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1161230 is about 1077.6038233043. The cubic root of 1161230 is about 105.1088817629.

Adding to 1161230 its reverse (321611), we get a palindrome (1482841).

The spelling of 1161230 in words is "one million, one hundred sixty-one thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 53 70 106 265 313 371 530 626 742 1565 1855 2191 3130 3710 4382 10955 16589 21910 33178 82945 116123 165890 232246 580615 1161230