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20497000096 = 251737678309
BaseRepresentation
bin10011000101101101…
…110110011010100000
31221220110201111012201
4103011231312122200
5313434213000341
613225521502544
71323635424526
oct230555663240
957813644181
1020497000096
118769027601
123b804a1a54
131c1864c431
14dc62da316
157ee6e0331
hex4c5b766a0

20497000096 has 24 divisors (see below), whose sum is σ = 42727203540. Its totient is φ = 9645646848.

The previous prime is 20497000093. The next prime is 20497000123. The reversal of 20497000096 is 69000079402.

It can be written as a sum of positive squares in 2 ways, for example, as 18994352400 + 1502647696 = 137820^2 + 38764^2 .

It is not an unprimeable number, because it can be changed into a prime (20497000093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18838611 + ... + 18839698.

Almost surely, 220497000096 is an apocalyptic number.

It is an amenable number.

20497000096 is an abundant number, since it is smaller than the sum of its proper divisors (22230203444).

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

20497000096 is a wasteful number, since it uses less digits than its factorization.

20497000096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37678336 (or 37678328 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

Adding to 20497000096 its reverse (69000079402), we get a palindrome (89497079498).

The spelling of 20497000096 in words is "twenty billion, four hundred ninety-seven million, ninety-six", and thus it is an aban number.

Divisors: 1 2 4 8 16 17 32 34 68 136 272 544 37678309 75356618 150713236 301426472 602852944 640531253 1205705888 1281062506 2562125012 5124250024 10248500048 20497000096