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200231666131 = 7131443492901
BaseRepresentation
bin1011101001111010111…
…1001100000111010011
3201010211111012112200111
42322132233030013103
511240033301304011
6231552443302151
720315633036320
oct2723657140723
9633744175614
10200231666131
1177a10612412
123298121a957
1315b60312923
149996b87b47
15531d986121
hex2e9ebcc1d3

200231666131 has 16 divisors (see below), whose sum is σ = 231104003328. Its totient is φ = 169932204000.

The previous prime is 200231666113. The next prime is 200231666183. The reversal of 200231666131 is 131666132002.

It is a cyclic number.

It is not a de Polignac number, because 200231666131 - 217 = 200231535059 is a prime.

It is a super-2 number, since 2×2002316661312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200231666093 and 200231666102.

It is not an unprimeable number, because it can be changed into a prime (200231666431) 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, 159781 + ... + 652681.

It is an arithmetic number, because the mean of its divisors is an integer number (14444000208).

Almost surely, 2200231666131 is an apocalyptic number.

200231666131 is a deficient number, since it is larger than the sum of its proper divisors (30872337197).

200231666131 is a wasteful number, since it uses less digits than its factorization.

200231666131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493482.

The product of its (nonzero) digits is 7776, while the sum is 31.

Adding to 200231666131 its reverse (131666132002), we get a palindrome (331897798133).

The spelling of 200231666131 in words is "two hundred billion, two hundred thirty-one million, six hundred sixty-six thousand, one hundred thirty-one".

Divisors: 1 7 131 443 917 3101 58033 406231 492901 3450307 64570031 218355143 451990217 1528486001 28604523733 200231666131