Search a number
-
+
13783331 = 181271281
BaseRepresentation
bin110100100101…
…000100100011
3221221021011202
4310211010203
512012031311
61211231415
7225104432
oct64450443
927837152
1013783331
117864691
12474856b
132b17923
141b8b119
151323e3b
hexd25123

13783331 has 8 divisors (see below), whose sum is σ = 13960128. Its totient is φ = 13608000.

The previous prime is 13783327. The next prime is 13783333. The reversal of 13783331 is 13338731.

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 13783331 - 22 = 13783327 is a prime.

It is a super-2 number, since 2×137833312 = 379960426911122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13783294 and 13783303.

It is not an unprimeable number, because it can be changed into a prime (13783333) 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, 48911 + ... + 49191.

It is an arithmetic number, because the mean of its divisors is an integer number (1745016).

Almost surely, 213783331 is an apocalyptic number.

13783331 is a deficient number, since it is larger than the sum of its proper divisors (176797).

13783331 is a wasteful number, since it uses less digits than its factorization.

13783331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733.

The product of its digits is 4536, while the sum is 29.

The square root of 13783331 is about 3712.5908743087. The cubic root of 13783331 is about 239.7644158168.

The spelling of 13783331 in words is "thirteen million, seven hundred eighty-three thousand, three hundred thirty-one".

Divisors: 1 181 271 281 49051 50861 76151 13783331