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315221411053 = 2412531306601
BaseRepresentation
bin1001001011001001010…
…10010000010011101101
31010010122022200211022001
410211210222100103231
520131033140123203
6400451040452301
731526323533133
oct4454452202355
91103568624261
10315221411053
111117592a575a
125111301a091
13239574ba703
141138491d753
1582edb5b91d
hex4964a904ed

315221411053 has 4 divisors (see below), whose sum is σ = 315222958908. Its totient is φ = 315219863200.

The previous prime is 315221410943. The next prime is 315221411069. The reversal of 315221411053 is 350114122513.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 159434899849 + 155786511204 = 399293^2 + 394698^2 .

It is a cyclic number.

It is not a de Polignac number, because 315221411053 - 213 = 315221402861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315221417053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412048 + ... + 894553.

It is an arithmetic number, because the mean of its divisors is an integer number (78805739727).

Almost surely, 2315221411053 is an apocalyptic number.

It is an amenable number.

315221411053 is a deficient number, since it is larger than the sum of its proper divisors (1547855).

315221411053 is a wasteful number, since it uses less digits than its factorization.

315221411053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547854.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 315221411053 its reverse (350114122513), we get a palindrome (665335533566).

The spelling of 315221411053 in words is "three hundred fifteen billion, two hundred twenty-one million, four hundred eleven thousand, fifty-three".

Divisors: 1 241253 1306601 315221411053