Search a number
-
+
2103830805 = 35140255387
BaseRepresentation
bin111110101100101…
…1110100100010101
312102121201200022110
41331121132210111
513302040041210
6544432221233
7103064160336
oct17531364425
95377650273
102103830805
1198a61524a
124a869a819
13276b2c6cb
1415d5a628d
15c4a72420
hex7d65e915

2103830805 has 8 divisors (see below), whose sum is σ = 3366129312. Its totient is φ = 1122043088.

The previous prime is 2103830777. The next prime is 2103830809. The reversal of 2103830805 is 5080383012.

It is a happy number.

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 2103830805 - 26 = 2103830741 is a prime.

It is a super-2 number, since 2×21038308052 = 8852208112133896050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103830809) 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, 70127679 + ... + 70127708.

It is an arithmetic number, because the mean of its divisors is an integer number (420766164).

Almost surely, 22103830805 is an apocalyptic number.

It is an amenable number.

2103830805 is a deficient number, since it is larger than the sum of its proper divisors (1262298507).

2103830805 is a wasteful number, since it uses less digits than its factorization.

2103830805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140255395.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2103830805 is about 45867.5354144955. The cubic root of 2103830805 is about 1281.3573664379.

The spelling of 2103830805 in words is "two billion, one hundred three million, eight hundred thirty thousand, eight hundred five".

Divisors: 1 3 5 15 140255387 420766161 701276935 2103830805