Search a number
-
+
1242030315 = 3582802021
BaseRepresentation
bin100101000000111…
…1110000011101011
310012120002200021210
41022001332003223
510020424432230
6323125004203
742531040431
oct11201760353
93176080253
101242030315
11588103839
122a7b53663
1316a41c1a6
14bad50d51
157408deb0
hex4a07e0eb

1242030315 has 8 divisors (see below), whose sum is σ = 1987248528. Its totient is φ = 662416160.

The previous prime is 1242030313. The next prime is 1242030329. The reversal of 1242030315 is 5130302421.

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

It is not a de Polignac number, because 1242030315 - 21 = 1242030313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1242030291 and 1242030300.

It is not an unprimeable number, because it can be changed into a prime (1242030313) 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, 41400996 + ... + 41401025.

It is an arithmetic number, because the mean of its divisors is an integer number (248406066).

Almost surely, 21242030315 is an apocalyptic number.

1242030315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1242030315 is a deficient number, since it is larger than the sum of its proper divisors (745218213).

1242030315 is an equidigital number, since it uses as much as digits as its factorization.

1242030315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82802029.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1242030315 is about 35242.4504681499. The cubic root of 1242030315 is about 1074.9231068130.

Adding to 1242030315 its reverse (5130302421), we get a palindrome (6372332736).

The spelling of 1242030315 in words is "one billion, two hundred forty-two million, thirty thousand, three hundred fifteen".

Divisors: 1 3 5 15 82802021 248406063 414010105 1242030315