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1389920220000 = 25325413245691
BaseRepresentation
bin10100001110011101101…
…100110111001101100000
311220212121221002220202200
4110032131230313031200
5140233024034020000
62542304234013200
7202263342636234
oct24163554671540
94825557086680
101389920220000
114965098023a4
121a5461577200
13a10b8535500
144b3b5a3a5c4
152624d293500
hex1439db37360

1389920220000 has 540 divisors, whose sum is σ = 5348428489404. Its totient is φ = 342126720000.

The previous prime is 1389920219951. The next prime is 1389920220047. The reversal of 1389920220000 is 220299831.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 30397155 + ... + 30442845.

Almost surely, 21389920220000 is an apocalyptic number.

1389920220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1389920220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2674214244702).

1389920220000 is an abundant number, since it is smaller than the sum of its proper divisors (3958508269404).

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

1389920220000 is a wasteful number, since it uses less digits than its factorization.

1389920220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45753 (or 45714 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 1389920220000 in words is "one trillion, three hundred eighty-nine billion, nine hundred twenty million, two hundred twenty thousand".