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253268624 = 2474321223
BaseRepresentation
bin11110001100010…
…01001010010000
3122122120101020102
433012021022100
51004314043444
641044231532
76163514330
oct1706111220
9578511212
10253268624
1111aa66514
127099b5a8
13406183bb
14258cb0c0
151737c84e
hexf189290

253268624 has 60 divisors (see below), whose sum is σ = 574623936. Its totient is φ = 105932736.

The previous prime is 253268623. The next prime is 253268627. The reversal of 253268624 is 426862352.

It is not an unprimeable number, because it can be changed into a prime (253268621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206477 + ... + 207699.

Almost surely, 2253268624 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 253268624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287311968).

253268624 is an abundant number, since it is smaller than the sum of its proper divisors (321355312).

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

253268624 is a wasteful number, since it uses less digits than its factorization.

253268624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324 (or 1275 counting only the distinct ones).

The product of its digits is 138240, while the sum is 38.

The square root of 253268624 is about 15914.4156034710. The cubic root of 253268624 is about 632.6941180075.

The spelling of 253268624 in words is "two hundred fifty-three million, two hundred sixty-eight thousand, six hundred twenty-four".

Divisors: 1 2 4 7 8 14 16 28 43 56 86 112 172 301 344 602 688 1204 1223 1849 2408 2446 3698 4816 4892 7396 8561 9784 12943 14792 17122 19568 25886 29584 34244 51772 52589 68488 103544 105178 136976 207088 210356 368123 420712 736246 841424 1472492 2261327 2944984 4522654 5889968 9045308 15829289 18090616 31658578 36181232 63317156 126634312 253268624