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31011331214 = 268099227693
BaseRepresentation
bin11100111000011010…
…110101110010001110
32222001020021211222202
4130320122311302032
51002002400044324
622125120241502
72145326652233
oct347032656216
988036254882
1031011331214
11121740a7156
126015770292
132c02a6ba36
1417028a578a
15c177e78ae
hex7386b5c8e

31011331214 has 8 divisors (see below), whose sum is σ = 46517884200. Its totient is φ = 15505369816.

The previous prime is 31011331199. The next prime is 31011331237. The reversal of 31011331214 is 41213311013.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 22352 + ... + 250044.

It is an arithmetic number, because the mean of its divisors is an integer number (5814735525).

Almost surely, 231011331214 is an apocalyptic number.

31011331214 is a deficient number, since it is larger than the sum of its proper divisors (15506552986).

31011331214 is a wasteful number, since it uses less digits than its factorization.

31011331214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295794.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31011331214 its reverse (41213311013), we get a palindrome (72224642227).

The spelling of 31011331214 in words is "thirty-one billion, eleven million, three hundred thirty-one thousand, two hundred fourteen".

Divisors: 1 2 68099 136198 227693 455386 15505665607 31011331214