Search a number
-
+
31211414124 = 22311268388129
BaseRepresentation
bin11101000100010110…
…000110001001101100
32222120011210010010220
4131010112012021230
51002410110222444
622201024531340
72153306433312
oct350426061154
988504703126
1031211414124
1112267036430
126070780b50
132c353549a7
1417212aa0b2
15c2a16b619
hex74458626c

31211414124 has 48 divisors (see below), whose sum is σ = 79477749120. Its totient is φ = 9454371840.

The previous prime is 31211414119. The next prime is 31211414131. The reversal of 31211414124 is 42141411213.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 31211414094 and 31211414103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310092 + ... + 398220.

It is an arithmetic number, because the mean of its divisors is an integer number (1655786440).

Almost surely, 231211414124 is an apocalyptic number.

It is an amenable number.

31211414124 is an abundant number, since it is smaller than the sum of its proper divisors (48266334996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31211414124 is a wasteful number, since it uses less digits than its factorization.

31211414124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90830 (or 90828 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

Adding to 31211414124 its reverse (42141411213), we get a palindrome (73352825337).

The spelling of 31211414124 in words is "thirty-one billion, two hundred eleven million, four hundred fourteen thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 2683 5366 8049 10732 16098 29513 32196 59026 88129 88539 118052 176258 177078 264387 352516 354156 528774 969419 1057548 1938838 2908257 3877676 5816514 11633028 236450107 472900214 709350321 945800428 1418700642 2600951177 2837401284 5201902354 7802853531 10403804708 15605707062 31211414124