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242244020440 = 23531195358081
BaseRepresentation
bin1110000110011011011…
…1100110100011011000
3212011021101212021100001
43201212313212203120
512432103432123230
6303141350022344
723334014125312
oct3414667464330
9764241767301
10242244020440
119380a485a94
123ab470479b4
1319ac7276886
14ba207087b2
15647be710ca
hex3866de68d8

242244020440 has 32 divisors (see below), whose sum is σ = 562631276160. Its totient is φ = 93771878400.

The previous prime is 242244020429. The next prime is 242244020467. The reversal of 242244020440 is 44020442242.

It is a junction number, because it is equal to n+sod(n) for n = 242244020399 and 242244020408.

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, 97677801 + ... + 97680280.

It is an arithmetic number, because the mean of its divisors is an integer number (17582227380).

Almost surely, 2242244020440 is an apocalyptic number.

242244020440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242244020440 is an abundant number, since it is smaller than the sum of its proper divisors (320387255720).

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

242244020440 is a wasteful number, since it uses less digits than its factorization.

242244020440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195358123 (or 195358119 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 242244020440 its reverse (44020442242), we get a palindrome (286264462682).

The spelling of 242244020440 in words is "two hundred forty-two billion, two hundred forty-four million, twenty thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 248 310 620 1240 195358081 390716162 781432324 976790405 1562864648 1953580810 3907161620 6056100511 7814323240 12112201022 24224402044 30280502555 48448804088 60561005110 121122010220 242244020440