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31220124414 = 2319512667019
BaseRepresentation
bin11101000100110111…
…010100101011111110
32222120210011122102020
4131010313110223332
51002414322440124
622201535341010
72153443451613
oct350467245376
988523148366
1031220124414
1112270a45616
126073681766
132c370b44cb
1417224d650a
15c2acdc379
hex744dd4afe

31220124414 has 16 divisors (see below), whose sum is σ = 62472276480. Its totient is φ = 10401370200.

The previous prime is 31220124389. The next prime is 31220124461. The reversal of 31220124414 is 41442102213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1321804 + ... + 1345215.

It is an arithmetic number, because the mean of its divisors is an integer number (3904517280).

Almost surely, 231220124414 is an apocalyptic number.

31220124414 is an abundant number, since it is smaller than the sum of its proper divisors (31252152066).

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

31220124414 is a wasteful number, since it uses less digits than its factorization.

31220124414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668975.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31220124414 its reverse (41442102213), we get a palindrome (72662226627).

The spelling of 31220124414 in words is "thirty-one billion, two hundred twenty million, one hundred twenty-four thousand, four hundred fourteen".

Divisors: 1 2 3 6 1951 3902 5853 11706 2667019 5334038 8001057 16002114 5203354069 10406708138 15610062207 31220124414