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1252260 = 22345773
BaseRepresentation
bin100110001101110100100
32100121210000
410301232210
5310033020
642501300
713433622
oct4615644
92317700
101252260
11785929
12504830
1334aca9
14248512
1519b090
hex131ba4

1252260 has 60 divisors (see below), whose sum is σ = 3933468. Its totient is φ = 333504.

The previous prime is 1252259. The next prime is 1252267. The reversal of 1252260 is 622521.

It can be written as a sum of positive squares in 2 ways, for example, as 236196 + 1016064 = 486^2 + 1008^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252267) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1234 + ... + 2006.

21252260 is an apocalyptic number.

1252260 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 1252260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1966734).

1252260 is an abundant number, since it is smaller than the sum of its proper divisors (2681208).

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

1252260 is a wasteful number, since it uses less digits than its factorization.

1252260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1252260 is about 1119.0442350506. The cubic root of 1252260 is about 107.7866157142.

Adding to 1252260 its reverse (622521), we get a palindrome (1874781).

The spelling of 1252260 in words is "one million, two hundred fifty-two thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 270 324 405 540 773 810 1546 1620 2319 3092 3865 4638 6957 7730 9276 11595 13914 15460 20871 23190 27828 34785 41742 46380 62613 69570 83484 104355 125226 139140 208710 250452 313065 417420 626130 1252260