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20443760228305 = 513013142776361
BaseRepresentation
bin1001010010111111011110…
…00100001111011111010001
32200101101220210121210200001
410221133233010033133101
510134422310104301210
6111251422255530001
74210004302515301
oct451375704173721
980341823553601
1020443760228305
116572171754677
122362179b29901
13b53ab8a2509b
145096aa169601
15256bc842803a
hex1297ef10f7d1

20443760228305 has 8 divisors (see below), whose sum is σ = 24551368939944. Its totient is φ = 16342437072000.

The previous prime is 20443760228273. The next prime is 20443760228357. The reversal of 20443760228305 is 50382206734402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 125230346641 + 20318529881664 = 353879^2 + 4507608^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20443760228305 - 25 = 20443760228273 is a prime.

It is a Duffinian number.

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, 1571381676 + ... + 1571394685.

It is an arithmetic number, because the mean of its divisors is an integer number (3068921117493).

Almost surely, 220443760228305 is an apocalyptic number.

It is an amenable number.

20443760228305 is a deficient number, since it is larger than the sum of its proper divisors (4107608711639).

20443760228305 is a wasteful number, since it uses less digits than its factorization.

20443760228305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142777667.

The product of its (nonzero) digits is 1935360, while the sum is 46.

The spelling of 20443760228305 in words is "twenty trillion, four hundred forty-three billion, seven hundred sixty million, two hundred twenty-eight thousand, three hundred five".

Divisors: 1 5 1301 6505 3142776361 15713881805 4088752045661 20443760228305