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253022250 = 23531325951
BaseRepresentation
bin11110001010011…
…01000000101010
3122122002212021110
433011031000222
51004233203000
641035051150
76161440125
oct1705150052
9578085243
10253022250
1111a9083a8
12708a0ab6
1340560210
14258653bc
151732e850
hexf14d02a

253022250 has 64 divisors (see below), whose sum is σ = 680150016. Its totient is φ = 62280000.

The previous prime is 253022249. The next prime is 253022257. The reversal of 253022250 is 52220352.

It is not an unprimeable number, because it can be changed into a prime (253022257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3226 + ... + 22725.

It is an arithmetic number, because the mean of its divisors is an integer number (10627344).

Almost surely, 2253022250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253022250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340075008).

253022250 is an abundant number, since it is smaller than the sum of its proper divisors (427127766).

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

253022250 is a wasteful number, since it uses less digits than its factorization.

253022250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25984 (or 25974 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 253022250 is about 15906.6731279674. The cubic root of 253022250 is about 632.4888945958.

The spelling of 253022250 in words is "two hundred fifty-three million, twenty-two thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 13 15 25 26 30 39 50 65 75 78 125 130 150 195 250 325 375 390 650 750 975 1625 1950 3250 4875 9750 25951 51902 77853 129755 155706 259510 337363 389265 648775 674726 778530 1012089 1297550 1686815 1946325 2024178 3243875 3373630 3892650 5060445 6487750 8434075 9731625 10120890 16868150 19463250 25302225 42170375 50604450 84340750 126511125 253022250