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253541388 = 22321128449
BaseRepresentation
bin11110001110010…
…11110000001100
3122200002020101210
433013023300030
51004401311023
641054134420
76166031502
oct1707136014
9580066353
10253541388
11120132441
1270ab1410
13406b25b9
142595c672
15173d3593
hexf1cbc0c

253541388 has 12 divisors (see below), whose sum is σ = 591596600. Its totient is φ = 84513792.

The previous prime is 253541381. The next prime is 253541389. The reversal of 253541388 is 883145352.

253541388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (253541381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10564213 + ... + 10564236.

Almost surely, 2253541388 is an apocalyptic number.

It is an amenable number.

253541388 is an abundant number, since it is smaller than the sum of its proper divisors (338055212).

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

253541388 is a wasteful number, since it uses less digits than its factorization.

253541388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21128456 (or 21128454 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 253541388 is about 15922.9830119862. The cubic root of 253541388 is about 632.9211684534.

The spelling of 253541388 in words is "two hundred fifty-three million, five hundred forty-one thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 12 21128449 42256898 63385347 84513796 126770694 253541388