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253837401 = 385798731
BaseRepresentation
bin11110010000101…
…00000001011001
3122200122021110020
433020110001121
51004440244101
641104341053
76201403506
oct1710240131
9580567406
10253837401
11120314884
1271014789
134078725c
14259d84ad
1517441136
hexf214059

253837401 has 8 divisors (see below), whose sum is σ = 338848224. Its totient is φ = 169025760.

The previous prime is 253837391. The next prime is 253837403. The reversal of 253837401 is 104738352.

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

It is not a de Polignac number, because 253837401 - 25 = 253837369 is a prime.

It is a super-2 number, since 2×2538374012 = 128866852292869602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (253837403) 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 7 ways as a sum of consecutive naturals, for example, 46795 + ... + 51936.

It is an arithmetic number, because the mean of its divisors is an integer number (42356028).

Almost surely, 2253837401 is an apocalyptic number.

It is an amenable number.

253837401 is a deficient number, since it is larger than the sum of its proper divisors (85010823).

253837401 is an equidigital number, since it uses as much as digits as its factorization.

253837401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99591.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 253837401 is about 15932.2754495395. The cubic root of 253837401 is about 633.1673873321.

The spelling of 253837401 in words is "two hundred fifty-three million, eight hundred thirty-seven thousand, four hundred one".

Divisors: 1 3 857 2571 98731 296193 84612467 253837401