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20340120441 = 3177919792551
BaseRepresentation
bin10010111100010111…
…011001101101111001
31221111112112011210010
4102330113121231321
5313124032323231
613202155212133
71320022112454
oct227427315571
957445464703
1020340120441
1186985165a3
123b37a47049
131bc1cb2034
14dad54049b
157e0a52546
hex4bc5d9b79

20340120441 has 32 divisors (see below), whose sum is σ = 29105049600. Its totient is φ = 12589574400.

The previous prime is 20340120439. The next prime is 20340120457. The reversal of 20340120441 is 14402104302.

It is not a de Polignac number, because 20340120441 - 21 = 20340120439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20340120401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7972116 + ... + 7974666.

It is an arithmetic number, because the mean of its divisors is an integer number (909532800).

Almost surely, 220340120441 is an apocalyptic number.

It is an amenable number.

20340120441 is a deficient number, since it is larger than the sum of its proper divisors (8764929159).

20340120441 is a wasteful number, since it uses less digits than its factorization.

20340120441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4629.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20340120441 its reverse (14402104302), we get a palindrome (34742224743).

The spelling of 20340120441 in words is "twenty billion, three hundred forty million, one hundred twenty thousand, four hundred forty-one".

Divisors: 1 3 17 51 79 237 1343 1979 2551 4029 5937 7653 33643 43367 100929 130101 156341 201529 469023 604587 2657797 3425993 5048429 7973391 10277979 15145287 85823293 257469879 398825891 1196477673 6780040147 20340120441