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311055800831 = 6740571144349
BaseRepresentation
bin1001000011011000101…
…11101101100111111111
31002201220000100220022222
410201230113231213333
520044020241111311
6354521433155555
731321152452666
oct4415427554777
91081800326288
10311055800831
1110aa10988086
125034bb5bbbb
1323442492aa9
14110ab5b9ddd
1581580c1adb
hex486c5ed9ff

311055800831 has 8 divisors (see below), whose sum is σ = 315776516400. Its totient is φ = 306337382208.

The previous prime is 311055800777. The next prime is 311055800843. The reversal of 311055800831 is 138008550113.

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

It is a cyclic number.

It is not a de Polignac number, because 311055800831 - 26 = 311055800767 is a prime.

It is a super-2 number, since 2×3110558008312 (a number of 24 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 = 311055800791 and 311055800800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311055802831) 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, 300356 + ... + 843993.

It is an arithmetic number, because the mean of its divisors is an integer number (39472064550).

Almost surely, 2311055800831 is an apocalyptic number.

311055800831 is a deficient number, since it is larger than the sum of its proper divisors (4720715569).

311055800831 is a wasteful number, since it uses less digits than its factorization.

311055800831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148473.

The product of its (nonzero) digits is 14400, while the sum is 35.

The spelling of 311055800831 in words is "three hundred eleven billion, fifty-five million, eight hundred thousand, eight hundred thirty-one".

Divisors: 1 67 4057 271819 1144349 76671383 4642623893 311055800831