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3131100000331 = 41132157810971
BaseRepresentation
bin101101100100000100000…
…110100111000001001011
3102002022220202001022211221
4231210010012213001023
5402244443100002311
610354224003302511
7442133401605352
oct55440406470113
912068822038757
103131100000331
11aa798a360396
124269b307aa37
131993525855b4
14ab790500999
15566a8e3d671
hex2d9041a704b

3131100000331 has 8 divisors (see below), whose sum is σ = 3209896409328. Its totient is φ = 3052419216000.

The previous prime is 3131100000323. The next prime is 3131100000361. The reversal of 3131100000331 is 1330000011313.

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 3131100000331 - 23 = 3131100000323 is a prime.

It is a super-2 number, since 2×31311000003312 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3131100000361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28851325 + ... + 28959646.

It is an arithmetic number, because the mean of its divisors is an integer number (401237051166).

Almost surely, 23131100000331 is an apocalyptic number.

3131100000331 is a deficient number, since it is larger than the sum of its proper divisors (78796408997).

3131100000331 is a wasteful number, since it uses less digits than its factorization.

3131100000331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57812333.

The product of its (nonzero) digits is 81, while the sum is 16.

Adding to 3131100000331 its reverse (1330000011313), we get a palindrome (4461100011644).

The spelling of 3131100000331 in words is "three trillion, one hundred thirty-one billion, one hundred million, three hundred thirty-one", and thus it is an aban number.

Divisors: 1 41 1321 54161 57810971 2370249811 76368292691 3131100000331