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13240939620 = 2235220682327
BaseRepresentation
bin11000101010011100…
…01011010001100100
31021011210011102111010
430111032023101210
5204104140031440
610025515142220
7646060062336
oct142516132144
937153142433
1013240939620
11568518aa07
122696444970
13133029141c
148d8767456
15527696580
hex31538b464

13240939620 has 24 divisors (see below), whose sum is σ = 37074631104. Its totient is φ = 3530917216.

The previous prime is 13240939601. The next prime is 13240939631. The reversal of 13240939620 is 2693904231.

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, 110341104 + ... + 110341223.

It is an arithmetic number, because the mean of its divisors is an integer number (1544776296).

Almost surely, 213240939620 is an apocalyptic number.

13240939620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13240939620 is an abundant number, since it is smaller than the sum of its proper divisors (23833691484).

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

13240939620 is a wasteful number, since it uses less digits than its factorization.

13240939620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220682339 (or 220682337 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 39.

The spelling of 13240939620 in words is "thirteen billion, two hundred forty million, nine hundred thirty-nine thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 220682327 441364654 662046981 882729308 1103411635 1324093962 2206823270 2648187924 3310234905 4413646540 6620469810 13240939620