Search a number
-
+
157648716318976 = 28227234572
BaseRepresentation
bin100011110110000101110011…
…101111000100100100000000
3202200012001220002122020121021
4203312011303233010210000
5131130404032334201401
61315142453115435224
745130513103562241
oct4366056357044400
9680161802566537
10157648716318976
1146260499517643
1215821464155b14
1369c729694b58c
142ad034a952cc8
151335c117c62a1
hex8f6173bc4900

157648716318976 has 81 divisors (see below), whose sum is σ = 316165443440889. Its totient is φ = 78454413361152.

The previous prime is 157648716318871. The next prime is 157648716318997. The reversal of 157648716318976 is 679813617846751.

The square root of 157648716318976 is 12555824.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2271892998400 + 155376823320576 = 1507280^2 + 12465024^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157648716318896 and 157648716318905.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 45602751040 + ... + 45602754496.

Almost surely, 2157648716318976 is an apocalyptic number.

157648716318976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

157648716318976 is the 12555824-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157648716318976

157648716318976 is an abundant number, since it is smaller than the sum of its proper divisors (158516727121913).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157648716318976 is an frugal number, since it uses more digits than its factorization.

157648716318976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7384 (or 3686 counting only the distinct ones).

The product of its digits is 2560481280, while the sum is 79.

The spelling of 157648716318976 in words is "one hundred fifty-seven trillion, six hundred forty-eight billion, seven hundred sixteen million, three hundred eighteen thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 16 32 64 128 227 256 454 908 1816 3457 3632 6914 7264 13828 14528 27656 29056 51529 55312 58112 103058 110624 206116 221248 412232 442496 784739 824464 884992 1569478 1648928 3138956 3297856 6277912 6595712 11950849 12555824 13191424 23901698 25111648 47803396 50223296 95606792 100446592 178135753 191213584 200893184 356271506 382427168 712543012 764854336 1425086024 1529708672 2712842723 2850172048 3059417344 5425685446 5700344096 10851370892 11400688192 21702741784 22801376384 43405483568 45602752768 86810967136 173621934272 347243868544 615815298121 694487737088 1231630596242 2463261192484 4926522384968 9853044769936 19706089539872 39412179079744 78824358159488 157648716318976