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231541215251114 = 21016353180425569
BaseRepresentation
bin110100101001010111100011…
…111000101100101010101010
31010100211010100101201122102002
4310221113203320230222222
5220322032402101013424
62140240322120211002
766525205106341406
oct6451274370545252
91110733311648362
10231541215251114
116785a09481899a
1221b762a4609a62
139c2732089b182
144126924388106
151bb7db9748cae
hexd295e3e2caaa

231541215251114 has 16 divisors (see below), whose sum is σ = 350805765964680. Its totient is φ = 114606320793600.

The previous prime is 231541215251023. The next prime is 231541215251117. The reversal of 231541215251114 is 411152512145132.

It can be written as a sum of positive squares in 4 ways, for example, as 226828690653889 + 4712524597225 = 15060833^2 + 2170835^2 .

It is a super-2 number, since 2×2315412152511142 (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231541215251117) 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, 88929479 + ... + 91496090.

Almost surely, 2231541215251114 is an apocalyptic number.

231541215251114 is a deficient number, since it is larger than the sum of its proper divisors (119264550713566).

231541215251114 is a wasteful number, since it uses less digits than its factorization.

231541215251114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180432025.

The product of its digits is 48000, while the sum is 38.

Adding to 231541215251114 its reverse (411152512145132), we get a palindrome (642693727396246).

The spelling of 231541215251114 in words is "two hundred thirty-one trillion, five hundred forty-one billion, two hundred fifteen million, two hundred fifty-one thousand, one hundred fourteen".

Divisors: 1 2 101 202 6353 12706 641653 1283306 180425569 360851138 18222982469 36445964938 1146243639857 2292487279714 115770607625557 231541215251114