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492942080885401 = 72857237012
BaseRepresentation
bin111000000010101000000010…
…1101000000100001010011001
32101122100210200011120210102201
41300011100011220010022121
51004102330340201313101
64504222244332330201
7205554614203353100
oct16005200550041231
92348323604523381
10492942080885401
11133080620760474
1247353589613961
1318209314765924
1489a2749c83037
153bec84c4d9e01
hex1c05405a04299

492942080885401 has 27 divisors (see below), whose sum is σ = 574247465786397. Its totient is φ = 421914728356800.

The previous prime is 492942080885327. The next prime is 492942080885417. The reversal of 492942080885401 is 104588080249294.

The square root of 492942080885401 is 22202299.

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

It can be written as a sum of positive squares in 4 ways, for example, as 79581297097225 + 413360783788176 = 8920835^2 + 20331276^2 .

It is not a de Polignac number, because 492942080885401 - 27 = 492942080885273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (492942080885801) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 133191589851 + ... + 133191593551.

Almost surely, 2492942080885401 is an apocalyptic number.

492942080885401 is the 22202299-th square number.

492942080885401 is the 11101150-th centered octagonal number.

It is an amenable number.

492942080885401 is a deficient number, since it is larger than the sum of its proper divisors (81305384900996).

492942080885401 is an frugal number, since it uses more digits than its factorization.

492942080885401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9130 (or 4565 counting only the distinct ones).

The product of its (nonzero) digits is 53084160, while the sum is 64.

The spelling of 492942080885401 in words is "four hundred ninety-two trillion, nine hundred forty-two billion, eighty million, eight hundred eighty-five thousand, four hundred one".

Divisors: 1 7 49 857 3701 5999 25907 41993 181349 734449 3171757 5141143 13697401 22202299 35988001 95881807 155416093 671172649 2718195749 11738672657 19027370243 82170708599 133191591701 575194960193 10060042467049 70420297269343 492942080885401