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13987772214 = 2313732456581
BaseRepresentation
bin11010000011011110…
…00111011100110110
31100002211110110012120
431001233013130312
5212121332202324
610231554300410
71003426050003
oct150157073466
940084413176
1013987772214
115a28807329
122864587706
13141bc1a2c0
14969a128aa
1556d01a179
hex341bc7736

13987772214 has 32 divisors (see below), whose sum is σ = 30540227424. Its totient is φ = 4244970240.

The previous prime is 13987772213. The next prime is 13987772237. The reversal of 13987772214 is 41227778931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13987772213) by changing a digit.

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, 1222597 + ... + 1233984.

It is an arithmetic number, because the mean of its divisors is an integer number (954382107).

Almost surely, 213987772214 is an apocalyptic number.

13987772214 is an abundant number, since it is smaller than the sum of its proper divisors (16552455210).

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

13987772214 is a wasteful number, since it uses less digits than its factorization.

13987772214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2456672.

The product of its digits is 1185408, while the sum is 51.

The spelling of 13987772214 in words is "thirteen billion, nine hundred eighty-seven million, seven hundred seventy-two thousand, two hundred fourteen".

Divisors: 1 2 3 6 13 26 39 73 78 146 219 438 949 1898 2847 5694 2456581 4913162 7369743 14739486 31935553 63871106 95806659 179330413 191613318 358660826 537991239 1075982478 2331295369 4662590738 6993886107 13987772214