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13061391500 = 225326122783
BaseRepresentation
bin11000010101000010…
…10000010010001100
31020201021022102202202
430022201100102030
5203222204012000
610000022541032
7641446665413
oct141241202214
936637272682
1013061391500
1155a28a6833
122646297778
131302018131
148bc98a47a
15516a2bdd5
hex30a85048c

13061391500 has 24 divisors (see below), whose sum is σ = 28526080128. Its totient is φ = 5224556400.

The previous prime is 13061391493. The next prime is 13061391517. The reversal of 13061391500 is 519316031.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13060892 + ... + 13061891.

It is an arithmetic number, because the mean of its divisors is an integer number (1188586672).

Almost surely, 213061391500 is an apocalyptic number.

13061391500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13061391500 is an abundant number, since it is smaller than the sum of its proper divisors (15464688628).

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

13061391500 is a wasteful number, since it uses less digits than its factorization.

13061391500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26122802 (or 26122790 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 29.

The spelling of 13061391500 in words is "thirteen billion, sixty-one million, three hundred ninety-one thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 26122783 52245566 104491132 130613915 261227830 522455660 653069575 1306139150 2612278300 3265347875 6530695750 13061391500