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13905991495311 = 3223293244129063
BaseRepresentation
bin1100101001011011110110…
…1011101110111010001111
31211020101210110100002221120
43022112331223232322033
53310313432310322221
645324154014332023
72633450301266316
oct312267553567217
954211713302846
1013905991495311
114481552741703
1216870a84ba013
1379b438823206
143610a704527d
15191ad7bbb5c6
hexca5bdaeee8f

13905991495311 has 32 divisors (see below), whose sum is σ = 18696330842112. Its totient is φ = 9193505629440.

The previous prime is 13905991495289. The next prime is 13905991495339. The reversal of 13905991495311 is 11359419950931.

It is not a de Polignac number, because 13905991495311 - 26 = 13905991495247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13905991495381) 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, 478462966 + ... + 478492028.

It is an arithmetic number, because the mean of its divisors is an integer number (584260338816).

Almost surely, 213905991495311 is an apocalyptic number.

13905991495311 is a deficient number, since it is larger than the sum of its proper divisors (4790339346801).

13905991495311 is a wasteful number, since it uses less digits than its factorization.

13905991495311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32023.

The product of its (nonzero) digits is 5904900, while the sum is 60.

The spelling of 13905991495311 in words is "thirteen trillion, nine hundred five billion, nine hundred ninety-one million, four hundred ninety-five thousand, three hundred eleven".

Divisors: 1 3 223 293 669 879 2441 7323 29063 65339 87189 196017 544343 715213 1633029 2145639 6481049 8515459 19443147 25546377 70942783 159492499 212828349 478477497 1898947357 5696842071 15820240609 20786235419 47460721827 62358706257 4635330498437 13905991495311