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231533531053153 = 7191740853616941
BaseRepresentation
bin110100101001010000011001…
…110111110011110001100001
31010100210101111212112221110121
4310221100121313303301201
5220321421132422200103
62140233011421200241
766524513511624040
oct6451203167636141
91110711455487417
10231533531053153
116785690123826a
1221b748bb100081
139c266978c9584
1441263d5a08557
151bb7ab9d2e6bd
hexd29419df3c61

231533531053153 has 8 divisors (see below), whose sum is σ = 278536578710720. Its totient is φ = 188012190629520.

The previous prime is 231533531053109. The next prime is 231533531053171. The reversal of 231533531053153 is 351350135335132.

231533531053153 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 231533531053153 - 241 = 229334507797601 is a prime.

It is a super-2 number, since 2×2315335310531532 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231533531053193) 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, 870426808338 + ... + 870426808603.

It is an arithmetic number, because the mean of its divisors is an integer number (34817072338840).

Almost surely, 2231533531053153 is an apocalyptic number.

It is an amenable number.

231533531053153 is a deficient number, since it is larger than the sum of its proper divisors (47003047657567).

231533531053153 is a wasteful number, since it uses less digits than its factorization.

231533531053153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740853616967.

The product of its (nonzero) digits is 911250, while the sum is 43.

Adding to 231533531053153 its reverse (351350135335132), we get a palindrome (582883666388285).

The spelling of 231533531053153 in words is "two hundred thirty-one trillion, five hundred thirty-three billion, five hundred thirty-one million, fifty-three thousand, one hundred fifty-three".

Divisors: 1 7 19 133 1740853616941 12185975318587 33076218721879 231533531053153