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630109011 = 3730005191
BaseRepresentation
bin100101100011101…
…011001101010011
31121220122212001210
4211203223031103
52242301442021
6142305231203
721420560340
oct4543531523
91556585053
10630109011
112a3753254
12157032503
13a070b38c
145d9837c7
153a4b8e76
hex258eb353

630109011 has 8 divisors (see below), whose sum is σ = 960166144. Its totient is φ = 360062280.

The previous prime is 630109009. The next prime is 630109021. The reversal of 630109011 is 110901036.

It is a happy number.

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

It is not a de Polignac number, because 630109011 - 21 = 630109009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 30005191 = 630109011 / (6 + 3 + 0 + 1 + 0 + 9 + 0 + 1 + 1).

It is not an unprimeable number, because it can be changed into a prime (630109021) 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, 15002575 + ... + 15002616.

It is an arithmetic number, because the mean of its divisors is an integer number (120020768).

Almost surely, 2630109011 is an apocalyptic number.

630109011 is a deficient number, since it is larger than the sum of its proper divisors (330057133).

630109011 is a wasteful number, since it uses less digits than its factorization.

630109011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30005201.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 630109011 is about 25101.9722531916. The cubic root of 630109011 is about 857.3113303404.

The spelling of 630109011 in words is "six hundred thirty million, one hundred nine thousand, eleven".

Divisors: 1 3 7 21 30005191 90015573 210036337 630109011