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253855472 = 24131498191
BaseRepresentation
bin11110010000110…
…00011011110000
3122200200012020112
433020120123300
51004441333342
641105000452
76201510263
oct1710303360
9580605215
10253855472
11120327412
1271023128
1340792550
1425a00cda
1517446682
hexf2186f0

253855472 has 40 divisors (see below), whose sum is σ = 533299200. Its totient is φ = 116363520.

The previous prime is 253855463. The next prime is 253855487. The reversal of 253855472 is 274558352.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26897 + ... + 35087.

It is an arithmetic number, because the mean of its divisors is an integer number (13332480).

Almost surely, 2253855472 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 253855472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266649600).

253855472 is an abundant number, since it is smaller than the sum of its proper divisors (279443728).

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

253855472 is a wasteful number, since it uses less digits than its factorization.

253855472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8361 (or 8355 counting only the distinct ones).

The product of its digits is 336000, while the sum is 41.

The square root of 253855472 is about 15932.8425586899. The cubic root of 253855472 is about 633.1824122999.

The spelling of 253855472 in words is "two hundred fifty-three million, eight hundred fifty-five thousand, four hundred seventy-two".

Divisors: 1 2 4 8 13 16 26 52 104 149 208 298 596 1192 1937 2384 3874 7748 8191 15496 16382 30992 32764 65528 106483 131056 212966 425932 851864 1220459 1703728 2440918 4881836 9763672 15865967 19527344 31731934 63463868 126927736 253855472