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13106612111507 = 20573536370619
BaseRepresentation
bin1011111010111001111011…
…1101011000100010010011
31201101222110022222221022222
42332232132331120202103
53204214320200032012
643513032224051255
72521631031530045
oct276563675304223
951358408887288
1013106612111507
1141a3534937062
121578195a63b2b
13740c43310175
143345132b1a95
1517adee11a972
hexbeb9ef58893

13106612111507 has 4 divisors (see below), whose sum is σ = 13106620539480. Its totient is φ = 13106603683536.

The previous prime is 13106612111443. The next prime is 13106612111519. The reversal of 13106612111507 is 70511121660131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13106612111507 - 26 = 13106612111443 is a prime.

It is a super-2 number, since 2×131066121115072 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13106612111597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1127957 + ... + 5242662.

It is an arithmetic number, because the mean of its divisors is an integer number (3276655134870).

Almost surely, 213106612111507 is an apocalyptic number.

13106612111507 is a deficient number, since it is larger than the sum of its proper divisors (8427973).

13106612111507 is an equidigital number, since it uses as much as digits as its factorization.

13106612111507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8427972.

The product of its (nonzero) digits is 7560, while the sum is 35.

Adding to 13106612111507 its reverse (70511121660131), we get a palindrome (83617733771638).

The spelling of 13106612111507 in words is "thirteen trillion, one hundred six billion, six hundred twelve million, one hundred eleven thousand, five hundred seven".

Divisors: 1 2057353 6370619 13106612111507