Search a number
-
+
193710015625 = 56725032
BaseRepresentation
bin1011010001101000000…
…1000100010010001001
3200111222222120101001011
42310122001010102021
511133204231000000
6224553353523521
716665212652100
oct2643201042211
9614888511034
10193710015625
1175174287905
12316611135a1
1315361151329
149538989037
15508b15a2ba
hex2d1a044489

193710015625 has 63 divisors (see below), whose sum is σ = 282227656971. Its totient is φ = 132565650000.

The previous prime is 193710015623. The next prime is 193710015641. The reversal of 193710015625 is 526510017391.

The square root of 193710015625 is 440125.

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

It can be written as a sum of positive squares in 3 ways, for example, as 169708569849 + 24001445776 = 411957^2 + 154924^2 .

It is not a de Polignac number, because 193710015625 - 21 = 193710015623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193710015623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 385109124 + ... + 385109626.

Almost surely, 2193710015625 is an apocalyptic number.

193710015625 is the 440125-th square number.

193710015625 is the 220063-rd centered octagonal number.

It is an amenable number.

193710015625 is a deficient number, since it is larger than the sum of its proper divisors (88517641346).

193710015625 is an frugal number, since it uses more digits than its factorization.

193710015625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 40.

The spelling of 193710015625 in words is "one hundred ninety-three billion, seven hundred ten million, fifteen thousand, six hundred twenty-five".

Divisors: 1 5 7 25 35 49 125 175 245 503 625 875 1225 2515 3125 3521 4375 6125 12575 15625 17605 21875 24647 30625 62875 88025 109375 123235 153125 253009 314375 440125 616175 765625 1265045 1571875 1771063 2200625 3080875 6325225 7859375 8855315 11003125 12397441 15404375 31626125 44276575 55015625 61987205 77021875 158130625 221382875 309936025 385109375 790653125 1106914375 1549680125 3953265625 5534571875 7748400625 27672859375 38742003125 193710015625