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2006899069 = 7286699867
BaseRepresentation
bin111011110011110…
…1101100101111101
312011212100000222011
41313213231211331
513102231232234
6531050451221
7100506234460
oct16747554575
95155300864
102006899069
1193a929a7a
12480133b11
1325ca21656
141507732d7
15bb2c6b64
hex779ed97d

2006899069 has 4 divisors (see below), whose sum is σ = 2293598944. Its totient is φ = 1720199196.

The previous prime is 2006899061. The next prime is 2006899087. The reversal of 2006899069 is 9609986002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2006899069 - 23 = 2006899061 is a prime.

It is a super-3 number, since 3×20068990693 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2006899061) 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, 143349927 + ... + 143349940.

It is an arithmetic number, because the mean of its divisors is an integer number (573399736).

Almost surely, 22006899069 is an apocalyptic number.

It is an amenable number.

2006899069 is a deficient number, since it is larger than the sum of its proper divisors (286699875).

2006899069 is an equidigital number, since it uses as much as digits as its factorization.

2006899069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286699874.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 2006899069 is about 44798.4270817626. The cubic root of 2006899069 is about 1261.3681009936.

The spelling of 2006899069 in words is "two billion, six million, eight hundred ninety-nine thousand, sixty-nine".

Divisors: 1 7 286699867 2006899069