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253138116 = 22373115591
BaseRepresentation
bin11110001011010…
…01010011000100
3122122022202012210
433011221103010
51004300404431
641041343420
76162432000
oct1705512304
9578282183
10253138116
1111a987460
1270937b70
13405a0b8a
1425895700
1517353d46
hexf1694c4

253138116 has 96 divisors (see below), whose sum is σ = 751564800. Its totient is φ = 65738400.

The previous prime is 253138111. The next prime is 253138117. The reversal of 253138116 is 611831352.

It is not an unprimeable number, because it can be changed into a prime (253138111) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 42481 + ... + 48071.

It is an arithmetic number, because the mean of its divisors is an integer number (7828800).

Almost surely, 2253138116 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 253138116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375782400).

253138116 is an abundant number, since it is smaller than the sum of its proper divisors (498426684).

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

253138116 is a wasteful number, since it uses less digits than its factorization.

253138116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5630 (or 5614 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 253138116 is about 15910.3147674708. The cubic root of 253138116 is about 632.5854246768.

Adding to 253138116 its reverse (611831352), we get a palindrome (864969468).

The spelling of 253138116 in words is "two hundred fifty-three million, one hundred thirty-eight thousand, one hundred sixteen".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 49 66 77 84 98 132 147 154 196 231 294 308 343 462 539 588 686 924 1029 1078 1372 1617 2058 2156 3234 3773 4116 5591 6468 7546 11182 11319 15092 16773 22364 22638 33546 39137 45276 61501 67092 78274 117411 123002 156548 184503 234822 246004 273959 369006 430507 469644 547918 738012 821877 861014 1095836 1291521 1643754 1722028 1917713 2583042 3013549 3287508 3835426 5166084 5753139 6027098 7670852 9040647 11506278 12054196 18081294 21094843 23012556 36162588 42189686 63284529 84379372 126569058 253138116