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253184368 = 24233971733
BaseRepresentation
bin11110001011101…
…00100101110000
3122122102002122211
433011310211300
51004303344433
641042341504
76163013563
oct1705644560
9578362584
10253184368
1111aa09188
127095a894
13405b8c48
14258a84da
15173628cd
hexf174970

253184368 has 40 divisors (see below), whose sum is σ = 513458208. Its totient is φ = 120713472.

The previous prime is 253184341. The next prime is 253184369. The reversal of 253184368 is 863481352.

253184368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 253184368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253184369) 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, 145230 + ... + 146962.

Almost surely, 2253184368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253184368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256729104).

253184368 is an abundant number, since it is smaller than the sum of its proper divisors (260273840).

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

253184368 is a wasteful number, since it uses less digits than its factorization.

253184368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161 (or 2155 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 253184368 is about 15911.7682235508. The cubic root of 253184368 is about 632.6239498368.

The spelling of 253184368 in words is "two hundred fifty-three million, one hundred eighty-four thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 16 23 46 92 184 368 397 794 1588 1733 3176 3466 6352 6932 9131 13864 18262 27728 36524 39859 73048 79718 146096 159436 318872 637744 688001 1376002 2752004 5504008 11008016 15824023 31648046 63296092 126592184 253184368