Search a number
-
+
2947269 = 31375571
BaseRepresentation
bin1011001111100011000101
312112201220010
423033203011
51223303034
6143100433
734023423
oct13174305
95481803
102947269
111733366
12ba1719
137c2660
1456a113
153d33e9
hex2cf8c5

2947269 has 8 divisors (see below), whose sum is σ = 4232032. Its totient is φ = 1813680.

The previous prime is 2947249. The next prime is 2947271. The reversal of 2947269 is 9627492.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2947269 - 212 = 2943173 is a prime.

It is a super-2 number, since 2×29472692 = 17372789116722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 75571 = 2947269 / (2 + 9 + 4 + 7 + 2 + 6 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2947249) 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, 37747 + ... + 37824.

It is an arithmetic number, because the mean of its divisors is an integer number (529004).

22947269 is an apocalyptic number.

It is an amenable number.

2947269 is a deficient number, since it is larger than the sum of its proper divisors (1284763).

2947269 is a wasteful number, since it uses less digits than its factorization.

2947269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75587.

The product of its digits is 54432, while the sum is 39.

The square root of 2947269 is about 1716.7611948084. The cubic root of 2947269 is about 143.3749431505.

The spelling of 2947269 in words is "two million, nine hundred forty-seven thousand, two hundred sixty-nine".

Divisors: 1 3 13 39 75571 226713 982423 2947269