Search a number
-
+
20120212022031 = 331192399733177
BaseRepresentation
bin1001001001100100110100…
…00101110010001100001111
32122020110210011120221201000
410210302122011302030033
510114122143234201111
6110443033042551343
74144431416242212
oct444623205621417
978213704527630
1020120212022031
116457a30176480
12230b522368553
13b2c4353a4414
144d7b757d5779
1524d58d76cc56
hex124c9a17230f

20120212022031 has 32 divisors (see below), whose sum is σ = 32517910656000. Its totient is φ = 12193919288640.

The previous prime is 20120212021997. The next prime is 20120212022059. The reversal of 20120212022031 is 13022021202102.

20120212022031 is a `hidden beast` number, since 201 + 2 + 0 + 212 + 0 + 220 + 31 = 666.

It is not a de Polignac number, because 20120212022031 - 26 = 20120212021967 is a prime.

It is a super-2 number, since 2×201202120220312 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20120212021995 and 20120212022013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120212022731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27075915 + ... + 27809091.

It is an arithmetic number, because the mean of its divisors is an integer number (1016184708000).

Almost surely, 220120212022031 is an apocalyptic number.

20120212022031 is a deficient number, since it is larger than the sum of its proper divisors (12397698633969).

20120212022031 is a wasteful number, since it uses less digits than its factorization.

20120212022031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825596 (or 825590 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20120212022031 its reverse (13022021202102), we get a palindrome (33142233224133).

The spelling of 20120212022031 in words is "twenty trillion, one hundred twenty billion, two hundred twelve million, twenty-two thousand, thirty-one".

Divisors: 1 3 9 11 27 33 99 297 92399 277197 733177 831591 1016389 2199531 2494773 3049167 6598593 8064947 9147501 19795779 24194841 27442503 72584523 217753569 67744821623 203234464869 609703394607 745193037853 1829110183821 2235579113559 6706737340677 20120212022031