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31223114234 = 21359139914549
BaseRepresentation
bin11101000101000010…
…101110100111111010
32222120222210112200022
4131011002232213322
51002421104123414
622202123410442
72153511043364
oct350502564772
988528715608
1031223114234
11122726a7944
126074683a22
132c378c0330
141722a73d34
15c2b1cd18e
hex7450ae9fa

31223114234 has 32 divisors (see below), whose sum is σ = 51332400000. Its totient is φ = 14155320384.

The previous prime is 31223114227. The next prime is 31223114267. The reversal of 31223114234 is 43241132213.

It is a Harshad number since it is a multiple of its sum of digits (26).

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 15 ways as a sum of consecutive naturals, for example, 2138792 + ... + 2153340.

It is an arithmetic number, because the mean of its divisors is an integer number (1604137500).

Almost surely, 231223114234 is an apocalyptic number.

31223114234 is a deficient number, since it is larger than the sum of its proper divisors (20109285766).

31223114234 is a wasteful number, since it uses less digits than its factorization.

31223114234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16022.

The product of its digits is 3456, while the sum is 26.

Adding to 31223114234 its reverse (43241132213), we get a palindrome (74464246447).

The spelling of 31223114234 in words is "thirty-one billion, two hundred twenty-three million, one hundred fourteen thousand, two hundred thirty-four".

Divisors: 1 2 13 26 59 118 767 1399 1534 2798 14549 18187 29098 36374 82541 165082 189137 378274 858391 1073033 1716782 2146066 11159083 20354051 22318166 40708102 264602663 529205326 1200889009 2401778018 15611557117 31223114234