Search a number
-
+
31330150243 = 75038898083
BaseRepresentation
bin11101001011011011…
…000010011101100011
32222212110012112110221
4131023123002131203
51003131004301433
622220505503511
72156250611620
oct351333023543
988773175427
1031330150243
1112318064657
1260a44a1b97
132c53b28552
141732d77347
15c357c272d
hex74b6c2763

31330150243 has 8 divisors (see below), whose sum is σ = 35877074688. Its totient is φ = 26801022984.

The previous prime is 31330150237. The next prime is 31330150273. The reversal of 31330150243 is 34205103313.

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 31330150243 - 25 = 31330150211 is a prime.

It is a super-3 number, since 3×313301502433 (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (31330150273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4445521 + ... + 4452562.

It is an arithmetic number, because the mean of its divisors is an integer number (4484634336).

Almost surely, 231330150243 is an apocalyptic number.

31330150243 is a deficient number, since it is larger than the sum of its proper divisors (4546924445).

31330150243 is an equidigital number, since it uses as much as digits as its factorization.

31330150243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8898593.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 31330150243 its reverse (34205103313), we get a palindrome (65535253556).

The spelling of 31330150243 in words is "thirty-one billion, three hundred thirty million, one hundred fifty thousand, two hundred forty-three".

Divisors: 1 7 503 3521 8898083 62286581 4475735749 31330150243