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253886434 = 2839151303
BaseRepresentation
bin11110010000111…
…11111111100010
3122200201202201021
433020133333202
51004443331214
641105400054
76201666454
oct1710377742
9580652637
10253886434
111203486aa
127103902a
13407a3679
1425a0c2d4
1517450924
hexf21ffe2

253886434 has 8 divisors (see below), whose sum is σ = 381286080. Its totient is φ = 126791076.

The previous prime is 253886411. The next prime is 253886441. The reversal of 253886434 is 434688352.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73974 + ... + 77329.

It is an arithmetic number, because the mean of its divisors is an integer number (47660760).

Almost surely, 2253886434 is an apocalyptic number.

253886434 is a deficient number, since it is larger than the sum of its proper divisors (127399646).

253886434 is a wasteful number, since it uses less digits than its factorization.

253886434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152144.

The product of its digits is 552960, while the sum is 43.

The square root of 253886434 is about 15933.8141698716. The cubic root of 253886434 is about 633.2081537145.

The spelling of 253886434 in words is "two hundred fifty-three million, eight hundred eighty-six thousand, four hundred thirty-four".

Divisors: 1 2 839 1678 151303 302606 126943217 253886434