Search a number
-
+
2100605219 = 7135383813
BaseRepresentation
bin111110100110100…
…1011000100100011
312102101122210122022
41331031023010203
513300223331334
6544235132055
7103024564316
oct17515130443
95371583568
102100605219
11988811879
124a75a402b
1327627048b
1415cda697d
15c463682e
hex7d34b123

2100605219 has 8 divisors (see below), whose sum is σ = 2136251232. Its totient is φ = 2065127680.

The previous prime is 2100605201. The next prime is 2100605237. The reversal of 2100605219 is 9125060012.

It is an interprime number because it is at equal distance from previous prime (2100605201) and next prime (2100605237).

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 2100605219 - 212 = 2100601123 is a prime.

It is a super-2 number, since 2×21006052192 = 8825084572180075922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100607219) 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, 16844 + ... + 66969.

It is an arithmetic number, because the mean of its divisors is an integer number (267031404).

Almost surely, 22100605219 is an apocalyptic number.

2100605219 is a deficient number, since it is larger than the sum of its proper divisors (35646013).

2100605219 is an equidigital number, since it uses as much as digits as its factorization.

2100605219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84237.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 2100605219 is about 45832.3599545125. The cubic root of 2100605219 is about 1280.7021739397.

The spelling of 2100605219 in words is "two billion, one hundred million, six hundred five thousand, two hundred nineteen".

Divisors: 1 71 353 25063 83813 5950723 29585989 2100605219