Search a number
-
+
715214247 = 31121673159
BaseRepresentation
bin101010101000010…
…100110110100111
31211211210122111120
4222220110312213
52431043323442
6154545305023
723503135506
oct5250246647
91754718446
10715214247
113377a1060
1217b635173
13b52383c7
146adb883d
1542bca4ec
hex2aa14da7

715214247 has 8 divisors (see below), whose sum is σ = 1040311680. Its totient is φ = 433463160.

The previous prime is 715214243. The next prime is 715214261. The reversal of 715214247 is 742412517.

715214247 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 not a de Polignac number, because 715214247 - 22 = 715214243 is a prime.

It is a super-2 number, since 2×7152142472 = 1023062838223554018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 21673159 = 715214247 / (7 + 1 + 5 + 2 + 1 + 4 + 2 + 4 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (715214243) 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, 10836547 + ... + 10836612.

It is an arithmetic number, because the mean of its divisors is an integer number (130038960).

Almost surely, 2715214247 is an apocalyptic number.

715214247 is a deficient number, since it is larger than the sum of its proper divisors (325097433).

715214247 is a wasteful number, since it uses less digits than its factorization.

715214247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21673173.

The product of its digits is 15680, while the sum is 33.

The square root of 715214247 is about 26743.4898059322. The cubic root of 715214247 is about 894.2907094251.

The spelling of 715214247 in words is "seven hundred fifteen million, two hundred fourteen thousand, two hundred forty-seven".

Divisors: 1 3 11 33 21673159 65019477 238404749 715214247