Search a number
-
+
6890885911 = 71375724021
BaseRepresentation
bin1100110101011101…
…01001001100010111
3122210020102021101201
412122232221030113
5103103031322121
63055435333331
7332522364250
oct63256511427
918706367351
106890885911
112a167a8638
1214038b1247
1385a820bb0
14495275b27
152a4e63e91
hex19aba9317

6890885911 has 8 divisors (see below), whose sum is σ = 8481090464. Its totient is φ = 5452129440.

The previous prime is 6890885891. The next prime is 6890885929. The reversal of 6890885911 is 1195880986.

6890885911 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6890885911 - 219 = 6890361623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6890885411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37861920 + ... + 37862101.

It is an arithmetic number, because the mean of its divisors is an integer number (1060136308).

Almost surely, 26890885911 is an apocalyptic number.

6890885911 is a deficient number, since it is larger than the sum of its proper divisors (1590204553).

6890885911 is a wasteful number, since it uses less digits than its factorization.

6890885911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75724041.

The product of its (nonzero) digits is 1244160, while the sum is 55.

The square root of 6890885911 is about 83011.3601322132. The cubic root of 6890885911 is about 1902.9396701874.

The spelling of 6890885911 in words is "six billion, eight hundred ninety million, eight hundred eighty-five thousand, nine hundred eleven".

Divisors: 1 7 13 91 75724021 530068147 984412273 6890885911