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1428744428600 = 23527143722143
BaseRepresentation
bin10100110010100111110…
…011011101110000111000
312001120211122201001200112
4110302213303131300320
5141402032033203400
63012204531323452
7205136422156616
oct24624763356070
95046748631615
101428744428600
11500a21a89a05
121b0a97750588
13a4964b1b4c8
144d219dba6b6
1527271922835
hex14ca7cddc38

1428744428600 has 24 divisors (see below), whose sum is σ = 3321830796960. Its totient is φ = 571497771360.

The previous prime is 1428744428549. The next prime is 1428744428603. The reversal of 1428744428600 is 68244478241.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428744428603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3571860872 + ... + 3571861271.

It is an arithmetic number, because the mean of its divisors is an integer number (138409616540).

Almost surely, 21428744428600 is an apocalyptic number.

1428744428600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1428744428600 is an abundant number, since it is smaller than the sum of its proper divisors (1893086368360).

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

1428744428600 is a wasteful number, since it uses less digits than its factorization.

1428744428600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7143722159 (or 7143722150 counting only the distinct ones).

The product of its (nonzero) digits is 2752512, while the sum is 50.

The spelling of 1428744428600 in words is "one trillion, four hundred twenty-eight billion, seven hundred forty-four million, four hundred twenty-eight thousand, six hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 7143722143 14287444286 28574888572 35718610715 57149777144 71437221430 142874442860 178593053575 285748885720 357186107150 714372214300 1428744428600