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253428830 = 2525342883
BaseRepresentation
bin11110001101100…
…00010001011110
3122122212111222222
433012300101132
51004334210310
641051505342
76165052364
oct1706602136
9578774888
10253428830
11120065916
1270a58252
13406732b5
142592d634
15173b0055
hexf1b045e

253428830 has 8 divisors (see below), whose sum is σ = 456171912. Its totient is φ = 101371528.

The previous prime is 253428827. The next prime is 253428853. The reversal of 253428830 is 38824352.

253428830 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 a congruent number.

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, 12671432 + ... + 12671451.

It is an arithmetic number, because the mean of its divisors is an integer number (57021489).

Almost surely, 2253428830 is an apocalyptic number.

253428830 is a deficient number, since it is larger than the sum of its proper divisors (202743082).

253428830 is a wasteful number, since it uses less digits than its factorization.

253428830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25342890.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 253428830 is about 15919.4481688280. The cubic root of 253428830 is about 632.8274942197.

The spelling of 253428830 in words is "two hundred fifty-three million, four hundred twenty-eight thousand, eight hundred thirty".

Divisors: 1 2 5 10 25342883 50685766 126714415 253428830