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13140243011155 = 5136117359190913
BaseRepresentation
bin1011111100110111001110…
…0001000101011001010011
31201112012021010110122122211
42333031303201011121103
53210242204202324110
643540313323012551
72524231320464131
oct277156341053123
951465233418584
1013140243011155
1142068226837a7
12158280096a157
137441729b39a0
14335dc3a30751
1517bc1b8ab98a
hexbf373845653

13140243011155 has 32 divisors (see below), whose sum is σ = 17260702744320. Its totient is φ = 9543889428480.

The previous prime is 13140243011123. The next prime is 13140243011179. The reversal of 13140243011155 is 55111034204131.

It is a happy number.

It is not a de Polignac number, because 13140243011155 - 25 = 13140243011123 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68732979 + ... + 68923891.

It is an arithmetic number, because the mean of its divisors is an integer number (539396960760).

Almost surely, 213140243011155 is an apocalyptic number.

13140243011155 is a deficient number, since it is larger than the sum of its proper divisors (4120459733165).

13140243011155 is a wasteful number, since it uses less digits than its factorization.

13140243011155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208351.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 13140243011155 its reverse (55111034204131), we get a palindrome (68251277215286).

The spelling of 13140243011155 in words is "thirteen trillion, one hundred forty billion, two hundred forty-three million, eleven thousand, one hundred fifty-five".

Divisors: 1 5 13 61 65 305 793 3965 17359 86795 190913 225667 954565 1058899 1128335 2481869 5294495 11645693 12409345 13765687 58228465 68828435 151394009 756970045 3314058767 16570293835 43082763971 202157584787 215413819855 1010787923935 2628048602231 13140243011155