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242243131025240 = 2356135599870409
BaseRepresentation
bin110111000101000110011111…
…110001100010011101011000
31011202201012212022022201000122
4313011012133301202131120
5223222402413020301430
62215112542540252412
7102011326416450602
oct6705063761423530
91152635768281018
10242243131025240
117020580a220004
1223204412541108
13a52257705ac87
1443b68b6dd0172
151d01476a1aee5
hexdc519fc62758

242243131025240 has 32 divisors (see below), whose sum is σ = 545047988364000. Its totient is φ = 96897084666624.

The previous prime is 242243131025149. The next prime is 242243131025257. The reversal of 242243131025240 is 42520131342242.

It is a self number, because there is not a number n which added to its sum of digits gives 242243131025240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19607156 + ... + 29477564.

It is an arithmetic number, because the mean of its divisors is an integer number (17032749636375).

Almost surely, 2242243131025240 is an apocalyptic number.

242243131025240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242243131025240 is an abundant number, since it is smaller than the sum of its proper divisors (302804857338760).

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

242243131025240 is a wasteful number, since it uses less digits than its factorization.

242243131025240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10483979 (or 10483975 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 242243131025240 its reverse (42520131342242), we get a palindrome (284763262367482).

The spelling of 242243131025240 in words is "two hundred forty-two trillion, two hundred forty-three billion, one hundred thirty-one million, twenty-five thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 613559 1227118 2454236 3067795 4908472 6135590 9870409 12271180 19740818 24542360 39481636 49352045 78963272 98704090 197408180 394816360 6056078275631 12112156551262 24224313102524 30280391378155 48448626205048 60560782756310 121121565512620 242243131025240