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264340215226331 = 19121571144414157
BaseRepresentation
bin111100000110101010000000…
…101000001101111111011011
31021122221200022002200110201222
4330012222000220031333123
5234121422230044220311
62334112115103002255
7106451643646214606
oct7406520050157733
91248850262613658
10264340215226331
1177255068184062
1225792aa329938b
13b4662382a28ba
14493c1c57d333d
152086167b08adb
hexf06a80a0dfdb

264340215226331 has 8 divisors (see below), whose sum is σ = 278275746659280. Its totient is φ = 250406972646048.

The previous prime is 264340215226277. The next prime is 264340215226333. The reversal of 264340215226331 is 133622512043462.

264340215226331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 264340215226331 - 226 = 264340148117467 is a prime.

It is a super-2 number, since 2×2643402152263312 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264340215226333) 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, 571976096 + ... + 572438061.

It is an arithmetic number, because the mean of its divisors is an integer number (34784468332410).

Almost surely, 2264340215226331 is an apocalyptic number.

264340215226331 is a deficient number, since it is larger than the sum of its proper divisors (13935531432949).

264340215226331 is a wasteful number, since it uses less digits than its factorization.

264340215226331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144426333.

The product of its (nonzero) digits is 1244160, while the sum is 44.

Adding to 264340215226331 its reverse (133622512043462), we get a palindrome (397962727269793).

The spelling of 264340215226331 in words is "two hundred sixty-four trillion, three hundred forty billion, two hundred fifteen million, two hundred twenty-six thousand, three hundred thirty-one".

Divisors: 1 19 12157 230983 1144414157 21743868983 13912642906649 264340215226331