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317719278368 = 25996432
BaseRepresentation
bin1001001111110011000…
…10110111001100100000
31010101002101212122002022
410213321202313030200
520201142113401433
6401542550441012
731645244210132
oct4477142671440
91111071778068
10317719278368
11112820282408
12516ab663168
1323c64b511cb
1411540577052
1583e80b5698
hex49f98b7320

317719278368 has 18 divisors (see below), whose sum is σ = 625516106859. Its totient is φ = 158858044896.

The previous prime is 317719278353. The next prime is 317719278397. The reversal of 317719278368 is 863872917713.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 158859639184 + 158859639184 = 398572^2 + 398572^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=398572.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 317719278368.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 3138755 + ... + 3238397.

Almost surely, 2317719278368 is an apocalyptic number.

It is an amenable number.

317719278368 is a deficient number, since it is larger than the sum of its proper divisors (307796828491).

317719278368 is an frugal number, since it uses more digits than its factorization.

317719278368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199296 (or 99645 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 62.

It can be divided in two parts, 31771 and 9278368, that added together give a palindrome (9310139).

The spelling of 317719278368 in words is "three hundred seventeen billion, seven hundred nineteen million, two hundred seventy-eight thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 16 32 99643 199286 398572 797144 1594288 3188576 9928727449 19857454898 39714909796 79429819592 158859639184 317719278368