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2253632500 = 22547218397
BaseRepresentation
bin1000011001010011…
…1011001111110100
312211001121101121101
42012110323033310
514103412220000
61011343055444
7106563363100
oct20624731764
95731541541
102253632500
11a571314a9
1252a8a1584
1329bb8c272
1417543c900
15d2cb2e6a
hex8653b3f4

2253632500 has 90 divisors (see below), whose sum is σ = 5733166362. Its totient is φ = 772632000.

The previous prime is 2253632497. The next prime is 2253632501. The reversal of 2253632500 is 52363522.

It can be written as a sum of positive squares in 5 ways, for example, as 407555344 + 1846077156 = 20188^2 + 42966^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2253632501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 113302 + ... + 131698.

Almost surely, 22253632500 is an apocalyptic number.

2253632500 is a gapful number since it is divisible by the number (20) 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 2253632500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2866583181).

2253632500 is an abundant number, since it is smaller than the sum of its proper divisors (3479533862).

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

2253632500 is a wasteful number, since it uses less digits than its factorization.

2253632500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18435 (or 18411 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 2253632500 is about 47472.4393727561. The cubic root of 2253632500 is about 1311.0754915206.

The spelling of 2253632500 in words is "two billion, two hundred fifty-three million, six hundred thirty-two thousand, five hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 49 50 70 98 100 125 140 175 196 245 250 350 490 500 625 700 875 980 1225 1250 1750 2450 2500 3500 4375 4900 6125 8750 12250 17500 18397 24500 30625 36794 61250 73588 91985 122500 128779 183970 257558 367940 459925 515116 643895 901453 919850 1287790 1802906 1839700 2299625 2575580 3219475 3605812 4507265 4599250 6438950 9014530 9198500 11498125 12877900 16097375 18029060 22536325 22996250 32194750 45072650 45992500 64389500 80486875 90145300 112681625 160973750 225363250 321947500 450726500 563408125 1126816250 2253632500