Search a number
-
+
247080359064100 = 22521272123772
BaseRepresentation
bin111000001011011111100001…
…000010000111001000100100
31012101211122121001021110121111
4320023133201002013020210
5224341131033410022400
62233255052220554404
7103020652426411342
oct7013374102071044
91171748531243544
10247080359064100
1171800212357a31
12238659b43b2a04
13a7b37687c4823
144502a78a5a992
151d871d92533ba
hexe0b7e1087224

247080359064100 has 81 divisors (see below), whose sum is σ = 540463054916883. Its totient is φ = 98046015500160.

The previous prime is 247080359064061. The next prime is 247080359064107. The reversal of 247080359064100 is 1460953080742.

It is a happy number.

The square root of 247080359064100 is 15718790.

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 74742906578404 + 172337452485696 = 8645398^2 + 13127736^2 .

It is a super-2 number, since 2×2470803590641002 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (247080359064107) 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, 19962857112 + ... + 19962869488.

It is a 1-persistent number, because it is pandigital, but 2⋅247080359064100 = 494160718128200 is not.

Almost surely, 2247080359064100 is an apocalyptic number.

247080359064100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

247080359064100 is the 15718790-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247080359064100

247080359064100 is an abundant number, since it is smaller than the sum of its proper divisors (293382695852783).

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

247080359064100 is an frugal number, since it uses more digits than its factorization.

247080359064100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25022 (or 12511 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 247080359064100 in words is "two hundred forty-seven trillion, eighty billion, three hundred fifty-nine million, sixty-four thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 127 254 508 635 1270 2540 3175 6350 12377 12700 16129 24754 32258 49508 61885 64516 80645 123770 161290 247540 309425 322580 403225 618850 806450 1237700 1571879 1612900 3143758 6287516 7859395 15718790 31437580 39296975 78593950 153190129 157187900 199628633 306380258 399257266 612760516 765950645 798514532 998143165 1531901290 1996286330 3063802580 3829753225 3992572660 4990715825 7659506450 9981431650 15319012900 19455146383 19962863300 38910292766 77820585532 97275731915 194551463830 389102927660 486378659575 972757319150 1945514638300 2470803590641 4941607181282 9883214362564 12354017953205 24708035906410 49416071812820 61770089766025 123540179532050 247080359064100