[go: up one dir, main page]

Search a number
-
+
3800836709 = 13921273029
BaseRepresentation
bin1110001010001100…
…0010101001100101
3100210212221111202222
43202203002221211
530241003233314
61425053042125
7163121402405
oct34243025145
910725844688
103800836709
11168052296a
128a0a86345
1348759b207
14280b0c805
15173a33c8e
hexe28c2a65

3800836709 has 4 divisors (see below), whose sum is σ = 3801123660. Its totient is φ = 3800549760.

The previous prime is 3800836673. The next prime is 3800836717. The reversal of 3800836709 is 9076380083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9076380083 = 23394625221.

It can be written as a sum of positive squares in 2 ways, for example, as 2492206084 + 1308630625 = 49922^2 + 36175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3800836709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3800836709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3800836789) 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, 122594 + ... + 150435.

It is an arithmetic number, because the mean of its divisors is an integer number (950280915).

Almost surely, 23800836709 is an apocalyptic number.

It is an amenable number.

3800836709 is a deficient number, since it is larger than the sum of its proper divisors (286951).

3800836709 is a wasteful number, since it uses less digits than its factorization.

3800836709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286950.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 3800836709 is about 61650.9262623036. The cubic root of 3800836709 is about 1560.6052753427.

The spelling of 3800836709 in words is "three billion, eight hundred million, eight hundred thirty-six thousand, seven hundred nine".

Divisors: 1 13921 273029 3800836709