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1253320000 = 265431333
BaseRepresentation
bin100101010110100…
…0010010101000000
310020100100020211021
41022231002111000
510031322220000
6324210555224
743026021112
oct11255022500
93210306737
101253320000
11593514959
122ab898b14
1316c872a8a
14bc64d3b2
157506e11a
hex4ab42540

1253320000 has 70 divisors (see below), whose sum is σ = 3107925458. Its totient is φ = 501312000.

The previous prime is 1253319989. The next prime is 1253320007. The reversal of 1253320000 is 233521.

It can be written as a sum of positive squares in 5 ways, for example, as 106007616 + 1147312384 = 10296^2 + 33872^2 .

It is a super-2 number, since 2×12533200002 = 3141622044800000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253320007) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 24334 + ... + 55666.

Almost surely, 21253320000 is an apocalyptic number.

1253320000 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 1253320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1553962729).

1253320000 is an abundant number, since it is smaller than the sum of its proper divisors (1854605458).

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

1253320000 is an frugal number, since it uses more digits than its factorization.

1253320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31365 (or 31340 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 1253320000 is about 35402.2598148762. The cubic root of 1253320000 is about 1078.1701983432.

Adding to 1253320000 its reverse (233521), we get a palindrome (1253553521).

The spelling of 1253320000 in words is "one billion, two hundred fifty-three million, three hundred twenty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 500 625 800 1000 1250 1600 2000 2500 4000 5000 8000 10000 20000 31333 40000 62666 125332 156665 250664 313330 501328 626660 783325 1002656 1253320 1566650 2005312 2506640 3133300 3916625 5013280 6266600 7833250 10026560 12533200 15666500 19583125 25066400 31333000 39166250 50132800 62666000 78332500 125332000 156665000 250664000 313330000 626660000 1253320000