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2124252134540 = 225106212606727
BaseRepresentation
bin11110111010010111010…
…010110011110010001100
321112002001210011021110222
4132322113102303302030
5234300432021301130
64303511251250512
7306320643136124
oct36722722636214
97462053137428
102124252134540
11749987a50588
122a383b8a9a38
1312541567c283
1474b5881dc84
153a3cb40ece5
hex1ee974b3c8c

2124252134540 has 12 divisors (see below), whose sum is σ = 4460929482576. Its totient is φ = 849700853808.

The previous prime is 2124252134531. The next prime is 2124252134567. The reversal of 2124252134540 is 454312524212.

It is a super-2 number, since 2×21242521345402 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2124252134540.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53106303344 + ... + 53106303383.

It is an arithmetic number, because the mean of its divisors is an integer number (371744123548).

Almost surely, 22124252134540 is an apocalyptic number.

2124252134540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124252134540 is an abundant number, since it is smaller than the sum of its proper divisors (2336677348036).

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

2124252134540 is a wasteful number, since it uses less digits than its factorization.

2124252134540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106212606736 (or 106212606734 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 2124252134540 its reverse (454312524212), we get a palindrome (2578564658752).

The spelling of 2124252134540 in words is "two trillion, one hundred twenty-four billion, two hundred fifty-two million, one hundred thirty-four thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 106212606727 212425213454 424850426908 531063033635 1062126067270 2124252134540