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613803253 = 72107117071
BaseRepresentation
bin100100100101011…
…110010011110101
31120202222102202211
4210211132103311
52224113201003
6140523533421
721132145600
oct4445362365
91522872684
10613803253
11295526518
1215168a271
139a21c5bb
145b73b337
1538d4796d
hex2495e4f5

613803253 has 12 divisors (see below), whose sum is σ = 720695232. Its totient is φ = 521195640.

The previous prime is 613803247. The next prime is 613803259. The reversal of 613803253 is 352308316.

It is an interprime number because it is at equal distance from previous prime (613803247) and next prime (613803259).

It is not a de Polignac number, because 613803253 - 217 = 613672181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613803259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53293 + ... + 63778.

It is an arithmetic number, because the mean of its divisors is an integer number (60057936).

Almost surely, 2613803253 is an apocalyptic number.

It is an amenable number.

613803253 is a deficient number, since it is larger than the sum of its proper divisors (106891979).

613803253 is a wasteful number, since it uses less digits than its factorization.

613803253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117192 (or 117185 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 613803253 is about 24775.0530372793. The cubic root of 613803253 is about 849.8515325466.

The spelling of 613803253 in words is "six hundred thirteen million, eight hundred three thousand, two hundred fifty-three".

Divisors: 1 7 49 107 749 5243 117071 819497 5736479 12526597 87686179 613803253