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20514130530 = 235683804351
BaseRepresentation
bin10011000110101111…
…001100101001100010
31221221122221210202020
4103012233030221202
5314003104134110
613231333002310
71324234142505
oct230657145142
957848853666
1020514130530
118777767993
123b86183396
131c1c06969a
14dc86b913c
15800e75d70
hex4c6bcca62

20514130530 has 16 divisors (see below), whose sum is σ = 49233913344. Its totient is φ = 5470434800.

The previous prime is 20514130459. The next prime is 20514130531. The reversal of 20514130530 is 3503141502.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20514130530.

It is not an unprimeable number, because it can be changed into a prime (20514130531) 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 7 ways as a sum of consecutive naturals, for example, 341902146 + ... + 341902205.

It is an arithmetic number, because the mean of its divisors is an integer number (3077119584).

Almost surely, 220514130530 is an apocalyptic number.

20514130530 is an abundant number, since it is smaller than the sum of its proper divisors (28719782814).

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

20514130530 is a wasteful number, since it uses less digits than its factorization.

20514130530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683804361.

The product of its (nonzero) digits is 1800, while the sum is 24.

The spelling of 20514130530 in words is "twenty billion, five hundred fourteen million, one hundred thirty thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 683804351 1367608702 2051413053 3419021755 4102826106 6838043510 10257065265 20514130530