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13216211255 = 513297168437
BaseRepresentation
bin11000100111011111…
…10110000100110111
31021010001122002112202
430103233312010313
5204031322230010
610023233135115
7645336641102
oct142357660467
937101562482
1013216211255
115672230145
12268a0ba49b
131328113a60
148d536b739
1552540e6a5
hex313bf6137

13216211255 has 16 divisors (see below), whose sum is σ = 17085409824. Its totient is φ = 9756236160.

The previous prime is 13216211249. The next prime is 13216211269. The reversal of 13216211255 is 55211261231.

It is not a de Polignac number, because 13216211255 - 220 = 13215162679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158897 + ... + 227333.

It is an arithmetic number, because the mean of its divisors is an integer number (1067838114).

Almost surely, 213216211255 is an apocalyptic number.

13216211255 is a deficient number, since it is larger than the sum of its proper divisors (3869198569).

13216211255 is a wasteful number, since it uses less digits than its factorization.

13216211255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71426.

The product of its digits is 3600, while the sum is 29.

Adding to 13216211255 its reverse (55211261231), we get a palindrome (68427472486).

The spelling of 13216211255 in words is "thirteen billion, two hundred sixteen million, two hundred eleven thousand, two hundred fifty-five".

Divisors: 1 5 13 65 2971 14855 38623 68437 193115 342185 889681 4448405 203326327 1016631635 2643242251 13216211255