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20302100130 = 2351324004359
BaseRepresentation
bin10010111010000110…
…010111011010100010
31221101212222112201110
4102322012113122202
5313034314201010
613154320244150
71316051001204
oct227206273242
957355875643
1020302100130
118679008354
123b27170656
131bb715c600
14da8484774
157dc542120
hex4ba1976a2

20302100130 has 48 divisors (see below), whose sum is σ = 52761447360. Its totient is φ = 4997438784.

The previous prime is 20302100123. The next prime is 20302100171. The reversal of 20302100130 is 3100120302.

It is a happy number.

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 23 ways as a sum of consecutive naturals, for example, 1997110 + ... + 2007249.

It is an arithmetic number, because the mean of its divisors is an integer number (1099196820).

Almost surely, 220302100130 is an apocalyptic number.

20302100130 is an abundant number, since it is smaller than the sum of its proper divisors (32459347230).

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

20302100130 is a wasteful number, since it uses less digits than its factorization.

20302100130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004395 (or 4004382 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20302100130 its reverse (3100120302), we get a palindrome (23402220432).

The spelling of 20302100130 in words is "twenty billion, three hundred two million, one hundred thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 169 195 338 390 507 845 1014 1690 2535 5070 4004359 8008718 12013077 20021795 24026154 40043590 52056667 60065385 104113334 120130770 156170001 260283335 312340002 520566670 676736671 780850005 1353473342 1561700010 2030210013 3383683355 4060420026 6767366710 10151050065 20302100130