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14121452780 = 2252719259681
BaseRepresentation
bin11010010011011010…
…00100010011101100
31100110011000010110122
431021231010103230
5212410042442110
610253131424112
71006641240161
oct151155042354
940404003418
1014121452780
115a97212536
1228a12b5038
131440824126
1497d690068
15579b24255
hex349b444ec

14121452780 has 24 divisors (see below), whose sum is σ = 29666071680. Its totient is φ = 5646481920.

The previous prime is 14121452773. The next prime is 14121452809. The reversal of 14121452780 is 8725412141.

It is a self number, because there is not a number n which added to its sum of digits gives 14121452780.

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, 75461 + ... + 184220.

It is an arithmetic number, because the mean of its divisors is an integer number (1236086320).

Almost surely, 214121452780 is an apocalyptic number.

14121452780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14121452780 is an abundant number, since it is smaller than the sum of its proper divisors (15544618900).

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

14121452780 is a wasteful number, since it uses less digits than its factorization.

14121452780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262409 (or 262407 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The spelling of 14121452780 in words is "fourteen billion, one hundred twenty-one million, four hundred fifty-two thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 2719 5438 10876 13595 27190 54380 259681 519362 1038724 1298405 2596810 5193620 706072639 1412145278 2824290556 3530363195 7060726390 14121452780