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253055751 = 3136488609
BaseRepresentation
bin11110001010101…
…01001100000111
3122122011120020020
433011111030013
51004240241001
641035510223
76161636604
oct1705251407
9578146206
10253055751
1111a930593
12708b8373
1340572540
14258736ab
1517339736
hexf155307

253055751 has 8 divisors (see below), whose sum is σ = 363362160. Its totient is φ = 155726592.

The previous prime is 253055743. The next prime is 253055753. The reversal of 253055751 is 157550352.

253055751 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253055751 - 23 = 253055743 is a prime.

It is a super-2 number, since 2×2530557512 = 128074426228348002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253055753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3244266 + ... + 3244343.

It is an arithmetic number, because the mean of its divisors is an integer number (45420270).

Almost surely, 2253055751 is an apocalyptic number.

253055751 is a deficient number, since it is larger than the sum of its proper divisors (110306409).

253055751 is a wasteful number, since it uses less digits than its factorization.

253055751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6488625.

The product of its (nonzero) digits is 26250, while the sum is 33.

The square root of 253055751 is about 15907.7261417212. The cubic root of 253055751 is about 632.5168079188.

The spelling of 253055751 in words is "two hundred fifty-three million, fifty-five thousand, seven hundred fifty-one".

Divisors: 1 3 13 39 6488609 19465827 84351917 253055751