Search a number
-
+
1712499390625 = 56194292
BaseRepresentation
bin11000111010111000111…
…010101111100010100001
320001201021000201122201111
4120322320322233202201
5211024144321000000
63350413353103321
7234503221434442
oct30727072574241
96051230648644
101712499390625
116002a3296791
12237a886b7b41
13c564619abba
145cc578032c9
152e82cd36cba
hex18eb8eaf8a1

1712499390625 has 105 divisors (see below), whose sum is σ = 2340119089061. Its totient is φ = 1253139300000.

The previous prime is 1712499390593. The next prime is 1712499390629. The reversal of 1712499390625 is 5260939942171.

The square root of 1712499390625 is 1308625.

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

It can be written as a sum of positive squares in 10 ways, for example, as 1451198487649 + 261300902976 = 1204657^2 + 511176^2 .

It is not a de Polignac number, because 1712499390625 - 25 = 1712499390593 is a prime.

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 1712499390625.

It is not an unprimeable number, because it can be changed into a prime (1712499390629) by changing a digit.

It is a polite number, since it can be written in 104 ways as a sum of consecutive naturals, for example, 59051703111 + ... + 59051703139.

Almost surely, 21712499390625 is an apocalyptic number.

1712499390625 is the 1308625-th square number.

1712499390625 is the 654313-rd centered octagonal number.

It is an amenable number.

1712499390625 is a deficient number, since it is larger than the sum of its proper divisors (627619698436).

1712499390625 is an frugal number, since it uses more digits than its factorization.

1712499390625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 58.

The spelling of 1712499390625 in words is "one trillion, seven hundred twelve billion, four hundred ninety-nine million, three hundred ninety thousand, six hundred twenty-five".

Divisors: 1 5 19 25 29 95 125 145 361 475 551 625 725 841 1805 2375 2755 3125 3625 4205 6859 9025 10469 11875 13775 15625 15979 18125 21025 34295 45125 52345 59375 68875 79895 90625 105125 130321 171475 198911 225625 261725 296875 303601 344375 399475 453125 525625 651605 857375 994555 1128125 1308625 1518005 1721875 1997375 2628125 3258025 3779309 4286875 4972775 5640625 5768419 6543125 7590025 8609375 9986875 13140625 16290125 18896545 21434375 24863875 28842095 32715625 37950125 49934375 81450625 94482725 107171875 109599961 124319375 144210475 163578125 189750625 249671875 407253125 472413625 547999805 621596875 721052375 948753125 2036265625 2362068125 2739999025 3107984375 3605261875 4743765625 11810340625 13699995125 18026309375 59051703125 68499975625 90131546875 342499878125 1712499390625