Search a number
-
+
8240530249 = 72299351199
BaseRepresentation
bin1111010110010110…
…01000001101001001
3210021022000022101001
413223023020031021
5113334033431444
63441411055001
7411131231350
oct75313101511
923238008331
108240530249
113549623386
12171b8a1461
13a1431b403
145825da997
153336ad8d4
hex1eb2c8349

8240530249 has 8 divisors (see below), whose sum is σ = 9418342400. Its totient is φ = 7062866496.

The previous prime is 8240530237. The next prime is 8240530253. The reversal of 8240530249 is 9420350428.

It is a happy number.

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

It is not a de Polignac number, because 8240530249 - 25 = 8240530217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8240530219) 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, 135352 + ... + 186550.

It is an arithmetic number, because the mean of its divisors is an integer number (1177292800).

Almost surely, 28240530249 is an apocalyptic number.

It is an amenable number.

8240530249 is a deficient number, since it is larger than the sum of its proper divisors (1177812151).

8240530249 is a wasteful number, since it uses less digits than its factorization.

8240530249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74199.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 8240530249 is about 90777.3663916287. The cubic root of 8240530249 is about 2019.8465923593.

The spelling of 8240530249 in words is "eight billion, two hundred forty million, five hundred thirty thousand, two hundred forty-nine".

Divisors: 1 7 22993 51199 160951 358393 1177218607 8240530249