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42131201244 = 223111462721821
BaseRepresentation
bin100111001111001101…
…110001110011011100
311000202012021202222220
4213033031301303130
51142241041414434
631204345505340
73021023205336
oct471715616334
9130665252886
1042131201244
111695aa68090
1281b97a2250
133c857760a2
14207965a456
151168b63d49
hex9cf371cdc

42131201244 has 48 divisors (see below), whose sum is σ = 107255304576. Its totient is φ = 12765572800.

The previous prime is 42131201243. The next prime is 42131201249. The reversal of 42131201244 is 44210213124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42131201243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1919854 + ... + 1941674.

It is an arithmetic number, because the mean of its divisors is an integer number (2234485512).

Almost surely, 242131201244 is an apocalyptic number.

42131201244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42131201244 is an abundant number, since it is smaller than the sum of its proper divisors (65124103332).

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

42131201244 is a wasteful number, since it uses less digits than its factorization.

42131201244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36466 (or 36464 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 42131201244 its reverse (44210213124), we get a palindrome (86341414368).

The spelling of 42131201244 in words is "forty-two billion, one hundred thirty-one million, two hundred one thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 14627 21821 29254 43642 43881 58508 65463 87284 87762 130926 160897 175524 240031 261852 321794 480062 482691 643588 720093 960124 965382 1440186 1930764 2880372 319175767 638351534 957527301 1276703068 1915054602 3510933437 3830109204 7021866874 10532800311 14043733748 21065600622 42131201244