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200031011231 = 2574051192133
BaseRepresentation
bin1011101001001011000…
…1110000000110011111
3201010022111122012220112
42322102301300012133
511234130414324411
6231520514440235
720310645353522
oct2722261600637
9633274565815
10200031011231
1177918322417
1232925b9307b
1315b2a88950c
149978274bb9
15530b04cb8b
hex2e92c7019f

200031011231 has 8 divisors (see below), whose sum is σ = 200859957744. Its totient is φ = 199202457600.

The previous prime is 200031011177. The next prime is 200031011263. The reversal of 200031011231 is 132110130002.

200031011231 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 a de Polignac number, because none of the positive numbers 2k-200031011231 is a prime.

It is a super-2 number, since 2×2000310112312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200031016231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 945041 + ... + 1137173.

It is an arithmetic number, because the mean of its divisors is an integer number (25107494718).

Almost surely, 2200031011231 is an apocalyptic number.

200031011231 is a deficient number, since it is larger than the sum of its proper divisors (828946513).

200031011231 is a wasteful number, since it uses less digits than its factorization.

200031011231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196441.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 200031011231 its reverse (132110130002), we get a palindrome (332141141233).

The spelling of 200031011231 in words is "two hundred billion, thirty-one million, eleven thousand, two hundred thirty-one".

Divisors: 1 257 4051 192133 1041107 49378181 778330783 200031011231