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106987661135 = 521397532227
BaseRepresentation
bin110001110100011110…
…1100010011101001111
3101020011011011022021222
41203220331202131033
53223102320124020
6121052140513555
710505153054255
oct1435075423517
9336134138258
10106987661135
1141411822363
1218899b4b8bb
13a1203b5384
14526d0c85d5
152bb2917b25
hex18e8f6274f

106987661135 has 4 divisors (see below), whose sum is σ = 128385193368. Its totient is φ = 85590128904.

The previous prime is 106987661117. The next prime is 106987661141. The reversal of 106987661135 is 531166789601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531166789601 = 775880969943.

It is a cyclic number.

It is not a de Polignac number, because 106987661135 - 232 = 102692693839 is a prime.

It is a super-2 number, since 2×1069876611352 (a number of 23 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 10698766109 + ... + 10698766118.

It is an arithmetic number, because the mean of its divisors is an integer number (32096298342).

Almost surely, 2106987661135 is an apocalyptic number.

106987661135 is a deficient number, since it is larger than the sum of its proper divisors (21397532233).

106987661135 is an equidigital number, since it uses as much as digits as its factorization.

106987661135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21397532232.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 106987661135 in words is "one hundred six billion, nine hundred eighty-seven million, six hundred sixty-one thousand, one hundred thirty-five".

Divisors: 1 5 21397532227 106987661135