Search a number
-
+
214951969 = 437963277
BaseRepresentation
bin11001100111111…
…10100000100001
3112222110200200001
430303332200201
5420011430334
633155100001
75220030061
oct1463764041
9488420601
10214951969
11100375661
125bba1601
13356c0b1b
14207953a1
1513d0e714
hexccfe821

214951969 has 8 divisors (see below), whose sum is σ = 222738560. Its totient is φ = 207292176.

The previous prime is 214951943. The next prime is 214951987. The reversal of 214951969 is 969159412.

It is a happy number.

214951969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 214951969 - 213 = 214943777 is a prime.

It is a super-2 number, since 2×2149519692 = 92408697953953922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214954969) 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, 28242 + ... + 35035.

It is an arithmetic number, because the mean of its divisors is an integer number (27842320).

Almost surely, 2214951969 is an apocalyptic number.

It is an amenable number.

214951969 is a deficient number, since it is larger than the sum of its proper divisors (7786591).

214951969 is an equidigital number, since it uses as much as digits as its factorization.

214951969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63399.

The product of its digits is 174960, while the sum is 46.

The square root of 214951969 is about 14661.2403636254. The cubic root of 214951969 is about 599.0280272244.

The spelling of 214951969 in words is "two hundred fourteen million, nine hundred fifty-one thousand, nine hundred sixty-nine".

Divisors: 1 43 79 3397 63277 2720911 4998883 214951969