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40218231353 = 1511549171947
BaseRepresentation
bin100101011101001100…
…011000001000111001
310211210212200211122012
4211131030120020321
51124331331400403
630250452135305
72622434216546
oct453514301071
9124725624565
1040218231353
1116069163533
127965007535
133a3c350c41
141d37577bcd
1510a5c42ed8
hex95d318239

40218231353 has 8 divisors (see below), whose sum is σ = 40510948800. Its totient is φ = 39925861200.

The previous prime is 40218231301. The next prime is 40218231359. The reversal of 40218231353 is 35313281204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40218231353 - 26 = 40218231289 is a prime.

It is a super-2 number, since 2×402182313532 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40218231359) 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, 147926 + ... + 319872.

It is an arithmetic number, because the mean of its divisors is an integer number (5063868600).

Almost surely, 240218231353 is an apocalyptic number.

It is an amenable number.

40218231353 is a deficient number, since it is larger than the sum of its proper divisors (292717447).

40218231353 is a wasteful number, since it uses less digits than its factorization.

40218231353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173647.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 40218231353 in words is "forty billion, two hundred eighteen million, two hundred thirty-one thousand, three hundred fifty-three".

Divisors: 1 151 1549 171947 233899 25963997 266345903 40218231353