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106987652089 = 412609454929
BaseRepresentation
bin110001110100011110…
…1100000001111111001
3101020011011010211212221
41203220331200033321
53223102314331324
6121052140404041
710505153016013
oct1435075401771
9336134124787
10106987652089
114141181658a
1218899b46621
13a1203b1216
14526d0c51b3
152bb29150e4
hex18e8f603f9

106987652089 has 4 divisors (see below), whose sum is σ = 109597107060. Its totient is φ = 104378197120.

The previous prime is 106987652087. The next prime is 106987652113. The reversal of 106987652089 is 980256789601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31930830864 + 75056821225 = 178692^2 + 273965^2 .

It is a cyclic number.

It is not a de Polignac number, because 106987652089 - 21 = 106987652087 is a prime.

It is a super-2 number, since 2×1069876520892 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106987652087) 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, 1304727424 + ... + 1304727505.

It is an arithmetic number, because the mean of its divisors is an integer number (27399276765).

Almost surely, 2106987652089 is an apocalyptic number.

It is an amenable number.

106987652089 is a deficient number, since it is larger than the sum of its proper divisors (2609454971).

106987652089 is an equidigital number, since it uses as much as digits as its factorization.

106987652089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609454970.

The product of its (nonzero) digits is 13063680, while the sum is 61.

The spelling of 106987652089 in words is "one hundred six billion, nine hundred eighty-seven million, six hundred fifty-two thousand, eighty-nine".

Divisors: 1 41 2609454929 106987652089