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315244212351 = 3105081404117
BaseRepresentation
bin1001001011001100000…
…01001111000001111111
31010010200220121020210120
410211212001033001333
520131110004243401
6400453213310023
731530021410205
oct4454601170177
91103626536716
10315244212351
11111770159702
125111a795313
132395c141bc3
1411387977075
158300b62836
hex496604f07f

315244212351 has 4 divisors (see below), whose sum is σ = 420325616472. Its totient is φ = 210162808232.

The previous prime is 315244212341. The next prime is 315244212377. The reversal of 315244212351 is 153212442513.

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

It is a cyclic number.

It is not a de Polignac number, because 315244212351 - 227 = 315109994623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315244212341) 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, 52540702056 + ... + 52540702061.

It is an arithmetic number, because the mean of its divisors is an integer number (105081404118).

Almost surely, 2315244212351 is an apocalyptic number.

315244212351 is a deficient number, since it is larger than the sum of its proper divisors (105081404121).

315244212351 is a wasteful number, since it uses less digits than its factorization.

315244212351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105081404120.

The product of its digits is 28800, while the sum is 33.

Adding to 315244212351 its reverse (153212442513), we get a palindrome (468456654864).

The spelling of 315244212351 in words is "three hundred fifteen billion, two hundred forty-four million, two hundred twelve thousand, three hundred fifty-one".

Divisors: 1 3 105081404117 315244212351