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315145301023 = 787751334957
BaseRepresentation
bin1001001011000000001…
…11111010110000011111
31010010110000111000222001
410211200013322300133
520130404144113043
6400435321303131
731524410601040
oct4454007726037
91103400430861
10315145301023
1111171a341103
12510b1634aa7
13239447bcaa7
141137878a8c7
1582e712574d
hex49601fac1f

315145301023 has 8 divisors (see below), whose sum is σ = 360576744992. Its totient is φ = 269816528736.

The previous prime is 315145301021. The next prime is 315145301041. The reversal of 315145301023 is 320103541513.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 315145301023 - 21 = 315145301021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 315145300982 and 315145301000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315145301021) 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 7 ways as a sum of consecutive naturals, for example, 25661340 + ... + 25673617.

It is an arithmetic number, because the mean of its divisors is an integer number (45072093124).

Almost surely, 2315145301023 is an apocalyptic number.

315145301023 is a deficient number, since it is larger than the sum of its proper divisors (45431443969).

315145301023 is an equidigital number, since it uses as much as digits as its factorization.

315145301023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51335841.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 315145301023 its reverse (320103541513), we get a palindrome (635248842536).

The spelling of 315145301023 in words is "three hundred fifteen billion, one hundred forty-five million, three hundred one thousand, twenty-three".

Divisors: 1 7 877 6139 51334957 359344699 45020757289 315145301023