Search a number
-
+
358421308081 = 634215651461
BaseRepresentation
bin1010011011100111001…
…00110010001010110001
31021021010222220222022021
411031303210302022301
521333021323324311
6432353444311441
734616004564604
oct5156344621261
91237128828267
10358421308081
111290075367a1
125956a6a2581
1327a504a3965
14134c208a33b
1594cb521171
hex53739322b1

358421308081 has 4 divisors (see below), whose sum is σ = 358427022964. Its totient is φ = 358415593200.

The previous prime is 358421308073. The next prime is 358421308093. The reversal of 358421308081 is 180803124853.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 180803124853 = 1313907932681.

It can be written as a sum of positive squares in 2 ways, for example, as 74097739681 + 284323568400 = 272209^2 + 533220^2 .

It is a cyclic number.

It is not a de Polignac number, because 358421308081 - 23 = 358421308073 is a prime.

It is a super-2 number, since 2×3584213080812 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (358421308181) 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 3 ways as a sum of consecutive naturals, for example, 2762310 + ... + 2889151.

It is an arithmetic number, because the mean of its divisors is an integer number (89606755741).

Almost surely, 2358421308081 is an apocalyptic number.

It is an amenable number.

358421308081 is a deficient number, since it is larger than the sum of its proper divisors (5714883).

358421308081 is an equidigital number, since it uses as much as digits as its factorization.

358421308081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5714882.

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 358421308081 in words is "three hundred fifty-eight billion, four hundred twenty-one million, three hundred eight thousand, eighty-one".

Divisors: 1 63421 5651461 358421308081