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115210311552231 = 3719128723588021
BaseRepresentation
bin11010001100100001111101…
…101100011100110011100111
3120002220222221200221201110120
4122030201331230130303213
5110100101204224132411
61045010515250453023
733160445631133350
oct3214417554346347
9502828850851416
10115210311552231
1133789467387745
1210b08644294173
134c39393a8608c
1420642cd06ad27
15d4bd407a8106
hex68c87db1cce7

115210311552231 has 16 divisors (see below), whose sum is σ = 176477724807168. Its totient is φ = 65489780685600.

The previous prime is 115210311552139. The next prime is 115210311552263. The reversal of 115210311552231 is 132255113012511.

It is not a de Polignac number, because 115210311552231 - 29 = 115210311551719 is a prime.

It is a super-2 number, since 2×1152103115522312 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 115210311552192 and 115210311552201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115210311552031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14361790000 + ... + 14361798021.

It is an arithmetic number, because the mean of its divisors is an integer number (11029857800448).

Almost surely, 2115210311552231 is an apocalyptic number.

115210311552231 is a deficient number, since it is larger than the sum of its proper divisors (61267413254937).

115210311552231 is a wasteful number, since it uses less digits than its factorization.

115210311552231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28723588222.

The product of its (nonzero) digits is 9000, while the sum is 33.

Adding to 115210311552231 its reverse (132255113012511), we get a palindrome (247465424564742).

The spelling of 115210311552231 in words is "one hundred fifteen trillion, two hundred ten billion, three hundred eleven million, five hundred fifty-two thousand, two hundred thirty-one".

Divisors: 1 3 7 21 191 573 1337 4011 28723588021 86170764063 201065116147 603195348441 5486205312011 16458615936033 38403437184077 115210311552231