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3112311031 = 167129714369
BaseRepresentation
bin1011100110000010…
…0001100011110111
322000220100210002221
42321200201203313
522333222423111
61232455343211
7140061131044
oct27140414367
98026323087
103112311031
111357900385
1272a381b07
133a7a4877b
142174c01cb
1513337b371
hexb98218f7

3112311031 has 8 divisors (see below), whose sum is σ = 3133579680. Its totient is φ = 3091074048.

The previous prime is 3112311019. The next prime is 3112311049. The reversal of 3112311031 is 1301132113.

3112311031 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-3112311031 is a prime.

It is a super-2 number, since 2×31123110312 = 19372959907368565922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3112310996 and 3112311014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112318031) 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, 209415 + ... + 223783.

It is an arithmetic number, because the mean of its divisors is an integer number (391697460).

Almost surely, 23112311031 is an apocalyptic number.

3112311031 is a deficient number, since it is larger than the sum of its proper divisors (21268649).

3112311031 is a wasteful number, since it uses less digits than its factorization.

3112311031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15833.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 3112311031 is about 55788.0904046733. The cubic root of 3112311031 is about 1460.0273703194.

Adding to 3112311031 its reverse (1301132113), we get a palindrome (4413443144).

The spelling of 3112311031 in words is "three billion, one hundred twelve million, three hundred eleven thousand, thirty-one".

Divisors: 1 167 1297 14369 216599 2399623 18636593 3112311031