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20323425438801 = 3215027172
BaseRepresentation
bin1001001111011111010101…
…00011011100110001010001
32122221220022110111010022100
410213233222203130301101
510130434333403020201
6111120241443431013
74165214266626222
oct447575243346121
978856273433270
1020323425438801
116526130914211
122342996085469
13b4564c37bc24
14503932595249
152539d3d90886
hex127bea8dcc51

20323425438801 has 9 divisors (see below), whose sum is σ = 29356078502491. Its totient is φ = 13548941276232.

The previous prime is 20323425438769. The next prime is 20323425438803. The reversal of 20323425438801 is 10883452432302.

The square root of 20323425438801 is 4508151.

It is a perfect power (a square), and thus also a powerful number.

20323425438801 is a `hidden beast` number, since 2 + 0 + 3 + 23 + 4 + 2 + 543 + 8 + 80 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5045302130625 + 15278123308176 = 2246175^2 + 3908724^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 20323425438801 - 25 = 20323425438769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20323425438803) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12773095 + ... + 14275811.

Almost surely, 220323425438801 is an apocalyptic number.

20323425438801 is the 4508151-st square number.

20323425438801 is the 2254076-th centered octagonal number.

It is an amenable number.

20323425438801 is a deficient number, since it is larger than the sum of its proper divisors (9032653063690).

20323425438801 is an frugal number, since it uses more digits than its factorization.

20323425438801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005440 (or 1502720 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

The spelling of 20323425438801 in words is "twenty trillion, three hundred twenty-three billion, four hundred twenty-five million, four hundred thirty-eight thousand, eight hundred one".

Divisors: 1 3 9 1502717 4508151 13524453 2258158382089 6774475146267 20323425438801