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253050308 = 22731811019
BaseRepresentation
bin11110001010100…
…11110111000100
3122122011021202122
433011103313010
51004240102213
641035425112
76161615000
oct1705236704
9578137678
10253050308
1111a927495
12708b5198
134056cc14
1425871700
1517337d08
hexf153dc4

253050308 has 48 divisors (see below), whose sum is σ = 519792000. Its totient is φ = 107745120.

The previous prime is 253050283. The next prime is 253050311. The reversal of 253050308 is 803050352.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247823 + ... + 248841.

It is an arithmetic number, because the mean of its divisors is an integer number (10829000).

Almost surely, 2253050308 is an apocalyptic number.

253050308 is a gapful number since it is divisible by the number (28) 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 253050308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259896000).

253050308 is an abundant number, since it is smaller than the sum of its proper divisors (266741692).

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

253050308 is a wasteful number, since it uses less digits than its factorization.

253050308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225 (or 1209 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 253050308 is about 15907.5550604108. Note that the first 3 decimals coincide. The cubic root of 253050308 is about 632.5122729318.

The spelling of 253050308 in words is "two hundred fifty-three million, fifty thousand, three hundred eight".

Divisors: 1 2 4 7 14 28 49 98 181 196 343 362 686 724 1019 1267 1372 2038 2534 4076 5068 7133 8869 14266 17738 28532 35476 49931 62083 99862 124166 184439 199724 248332 349517 368878 699034 737756 1291073 1398068 2582146 5164292 9037511 18075022 36150044 63262577 126525154 253050308