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200113312331 = 239239941723
BaseRepresentation
bin1011101001011110101…
…1101101001001001011
3201010112020111112210102
42322113223231021023
511234313001443311
6231533014440015
720312665042442
oct2722753551113
9633466445712
10200113312331
117795a825459
123294966300b
1315b419440aa
149985179d59
1553133a843b
hex2e97aed24b

200113312331 has 8 divisors (see below), whose sum is σ = 208836714240. Its totient is φ = 191391812392.

The previous prime is 200113312319. The next prime is 200113312349. The reversal of 200113312331 is 133213311002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-200113312331 is a prime.

It is a super-2 number, since 2×2001133123312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200113312351) 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, 258365 + ... + 683358.

It is an arithmetic number, because the mean of its divisors is an integer number (26104589280).

Almost surely, 2200113312331 is an apocalyptic number.

200113312331 is a deficient number, since it is larger than the sum of its proper divisors (8723401909).

200113312331 is an equidigital number, since it uses as much as digits as its factorization.

200113312331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950985.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 200113312331 its reverse (133213311002), we get a palindrome (333326623333).

The spelling of 200113312331 in words is "two hundred billion, one hundred thirteen million, three hundred twelve thousand, three hundred thirty-one".

Divisors: 1 23 9239 212497 941723 21659629 8700578797 200113312331