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20310303130 = 2513156233101
BaseRepresentation
bin10010111010100101…
…101010000110011010
31221102110102022010021
4102322211222012122
5313043414200010
613155212141054
71316210504515
oct227245520632
957373368107
1020310303130
118682700397
123b29a6778a
131bb8a72260
14da95bbd7c
157dd1128da
hex4ba96a19a

20310303130 has 16 divisors (see below), whose sum is σ = 39370741704. Its totient is φ = 7499188800.

The previous prime is 20310303113. The next prime is 20310303161. The reversal of 20310303130 is 3130301302.

It can be written as a sum of positive squares in 4 ways, for example, as 18829053961 + 1481249169 = 137219^2 + 38487^2 .

It is an unprimeable number.

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, 78116421 + ... + 78116680.

Almost surely, 220310303130 is an apocalyptic number.

20310303130 is a deficient number, since it is larger than the sum of its proper divisors (19060438574).

20310303130 is a wasteful number, since it uses less digits than its factorization.

20310303130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156233121.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 20310303130 its reverse (3130301302), we get a palindrome (23440604432).

The spelling of 20310303130 in words is "twenty billion, three hundred ten million, three hundred three thousand, one hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 156233101 312466202 781165505 1562331010 2031030313 4062060626 10155151565 20310303130