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231240422353 = 3112517595939
BaseRepresentation
bin1101011101011100000…
…0001101001111010001
3211002212112122120110011
43113113000031033101
512242040022003403
6254121432434521
722464232105363
oct3272700151721
9732775576404
10231240422353
118a08320a976
1238995b48a41
1318a6268c5a5
14b29917cd33
156035e20a6d
hex35d700d3d1

231240422353 has 8 divisors (see below), whose sum is σ = 238719261440. Its totient is φ = 223762800240.

The previous prime is 231240422351. The next prime is 231240422359. The reversal of 231240422353 is 353224042132.

231240422353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 231240422353 - 21 = 231240422351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231240422351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90058 + ... + 685996.

It is an arithmetic number, because the mean of its divisors is an integer number (29839907680).

Almost surely, 2231240422353 is an apocalyptic number.

It is an amenable number.

231240422353 is a deficient number, since it is larger than the sum of its proper divisors (7478839087).

231240422353 is a wasteful number, since it uses less digits than its factorization.

231240422353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608487.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 231240422353 its reverse (353224042132), we get a palindrome (584464464485).

The spelling of 231240422353 in words is "two hundred thirty-one billion, two hundred forty million, four hundred twenty-two thousand, three hundred fifty-three".

Divisors: 1 31 12517 388027 595939 18474109 7459368463 231240422353