Search a number
-
+
28837531512011 is a prime number
BaseRepresentation
bin1101000111010010000101…
…10100100110110011001011
310210002211201011011000002002
412203221002310212303023
512234433231031341021
6141155440141101215
76034304625312035
oct643510264466313
9123084634130062
1028837531512011
119208a23822492
123298aa6b5780b
1313124a168b921
14719a5b662c55
153501e502150b
hex1a3a42d26ccb

28837531512011 has 2 divisors, whose sum is σ = 28837531512012. Its totient is φ = 28837531512010.

The previous prime is 28837531511989. The next prime is 28837531512061. The reversal of 28837531512011 is 11021513573882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28837531512011 - 214 = 28837531495627 is a prime.

It is not a weakly prime, because it can be changed into another prime (28837531512061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14418765756005 + 14418765756006.

It is an arithmetic number, because the mean of its divisors is an integer number (14418765756006).

Almost surely, 228837531512011 is an apocalyptic number.

28837531512011 is a deficient number, since it is larger than the sum of its proper divisors (1).

28837531512011 is an equidigital number, since it uses as much as digits as its factorization.

28837531512011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 47.

The spelling of 28837531512011 in words is "twenty-eight trillion, eight hundred thirty-seven billion, five hundred thirty-one million, five hundred twelve thousand, eleven".