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12711272938 = 2713130753437
BaseRepresentation
bin10111101011010011…
…01010000111101010
31012210212111120101121
423311221222013222
5202013041213223
65501154405454
7626666015530
oct136551520752
935725446347
1012711272938
115433200551
122568b9088a
13127761cca0
1488828c150
154e5e1d15d
hex2f5a6a1ea

12711272938 has 32 divisors (see below), whose sum is σ = 23485359744. Its totient is φ = 5024693952.

The previous prime is 12711272879. The next prime is 12711272983. The reversal of 12711272938 is 83927211721.

It is a junction number, because it is equal to n+sod(n) for n = 12711272894 and 12711272903.

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, 211156 + ... + 264592.

It is an arithmetic number, because the mean of its divisors is an integer number (733917492).

Almost surely, 212711272938 is an apocalyptic number.

12711272938 is a deficient number, since it is larger than the sum of its proper divisors (10774086806).

12711272938 is a wasteful number, since it uses less digits than its factorization.

12711272938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54766.

The product of its digits is 84672, while the sum is 43.

The spelling of 12711272938 in words is "twelve billion, seven hundred eleven million, two hundred seventy-two thousand, nine hundred thirty-eight".

Divisors: 1 2 7 13 14 26 91 182 1307 2614 9149 16991 18298 33982 53437 106874 118937 237874 374059 694681 748118 1389362 4862767 9725534 69842159 139684318 488895113 907948067 977790226 1815896134 6355636469 12711272938