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20301445100 = 2252203014451
BaseRepresentation
bin10010111010000011…
…110111011111101100
31221101211202021012002
4102322003313133230
5313034132220400
613154254231432
71316042302406
oct227203673754
957354667162
1020301445100
118678700202
123b26ab5578
131bb6c90411
14da8353b76
157dc462ed5
hex4ba0f77ec

20301445100 has 18 divisors (see below), whose sum is σ = 44054136084. Its totient is φ = 8120578000.

The previous prime is 20301445093. The next prime is 20301445103. The reversal of 20301445100 is 154410302.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (20301445103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101507126 + ... + 101507325.

Almost surely, 220301445100 is an apocalyptic number.

20301445100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20301445100 is an abundant number, since it is smaller than the sum of its proper divisors (23752690984).

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

20301445100 is a wasteful number, since it uses less digits than its factorization.

20301445100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203014465 (or 203014458 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 20301445100 its reverse (154410302), we get a palindrome (20455855402).

The spelling of 20301445100 in words is "twenty billion, three hundred one million, four hundred forty-five thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 203014451 406028902 812057804 1015072255 2030144510 4060289020 5075361275 10150722550 20301445100