Search a number
-
+
257124041105575 = 52723564731131191
BaseRepresentation
bin111010011101101001011011…
…001000100010000010100111
31020201101211002111222100021211
4322131221123020202002213
5232200210014010334300
62310505053115452251
7105105412302226360
oct7235513310420247
91221354074870254
10257124041105575
1174a22769aa3276
1224a08441157087
13b0619017a9067
14476cc27380b67
151ead5be0484ba
hexe9da5b2220a7

257124041105575 has 48 divisors (see below), whose sum is σ = 380231241071616. Its totient is φ = 168644682835200.

The previous prime is 257124041105557. The next prime is 257124041105579. The reversal of 257124041105575 is 575501140421752.

It is not a de Polignac number, because 257124041105575 - 215 = 257124041072807 is a prime.

It is a super-2 number, since 2×2571240411055752 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257124041105579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 226738230 + ... + 227869420.

It is an arithmetic number, because the mean of its divisors is an integer number (7921484188992).

Almost surely, 2257124041105575 is an apocalyptic number.

257124041105575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

257124041105575 is a deficient number, since it is larger than the sum of its proper divisors (123107199966041).

257124041105575 is a wasteful number, since it uses less digits than its factorization.

257124041105575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187704 (or 1187699 counting only the distinct ones).

The product of its (nonzero) digits is 1960000, while the sum is 49.

The spelling of 257124041105575 in words is "two hundred fifty-seven trillion, one hundred twenty-four billion, forty-one million, one hundred five thousand, five hundred seventy-five".

Divisors: 1 5 7 23 25 35 115 161 175 575 805 4025 56473 282365 395311 1131191 1298879 1411825 1976555 5655955 6494395 7918337 9092153 9882775 26017393 28279775 32471975 39591685 45460765 130086965 182121751 197958425 227303825 650434825 910608755 4553043775 63881749343 319408746715 447172245401 1469280234889 1597043733575 2235861227005 7346401174445 10284961644223 11179306135025 36732005872225 51424808221115 257124041105575