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14287640780 = 2257102054577
BaseRepresentation
bin11010100111001110…
…00001100011001100
31100212201201100112202
431103213001203030
5213230114001110
610321425421032
71014026641250
oct152347014314
940781640482
1014287640780
116072000a96
122928a9a778
1314690a031a
14997790260
155895000a5
hex3539c18cc

14287640780 has 24 divisors (see below), whose sum is σ = 34290338208. Its totient is φ = 4898619648.

The previous prime is 14287640753. The next prime is 14287640789. The reversal of 14287640780 is 8704678241.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (14287640789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51027149 + ... + 51027428.

It is an arithmetic number, because the mean of its divisors is an integer number (1428764092).

Almost surely, 214287640780 is an apocalyptic number.

14287640780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14287640780 is an abundant number, since it is smaller than the sum of its proper divisors (20002697428).

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

14287640780 is a wasteful number, since it uses less digits than its factorization.

14287640780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102054593 (or 102054591 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 47.

The spelling of 14287640780 in words is "fourteen billion, two hundred eighty-seven million, six hundred forty thousand, seven hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 102054577 204109154 408218308 510272885 714382039 1020545770 1428764078 2041091540 2857528156 3571910195 7143820390 14287640780