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20301203101 = 26209774589
BaseRepresentation
bin10010111010000010…
…111100011010011101
31221101211021222020011
4102322002330122131
5313034101444401
613154245123221
71316040244024
oct227202743235
957354258204
1020301203101
118678555403
123b269b9511
131bb6c0721a
14da82cd8bb
157dc416451
hex4ba0bc69d

20301203101 has 4 divisors (see below), whose sum is σ = 20302003900. Its totient is φ = 20300402304.

The previous prime is 20301203099. The next prime is 20301203107. The reversal of 20301203101 is 10130210302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10130210302 = 25065105151.

It can be written as a sum of positive squares in 2 ways, for example, as 13589497476 + 6711705625 = 116574^2 + 81925^2 .

It is a cyclic number.

It is not a de Polignac number, because 20301203101 - 21 = 20301203099 is a prime.

It is a super-3 number, since 3×203012031013 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301203107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361086 + ... + 413503.

It is an arithmetic number, because the mean of its divisors is an integer number (5075500975).

Almost surely, 220301203101 is an apocalyptic number.

It is an amenable number.

20301203101 is a deficient number, since it is larger than the sum of its proper divisors (800799).

20301203101 is an equidigital number, since it uses as much as digits as its factorization.

20301203101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800798.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20301203101 its reverse (10130210302), we get a palindrome (30431413403).

The spelling of 20301203101 in words is "twenty billion, three hundred one million, two hundred three thousand, one hundred one".

Divisors: 1 26209 774589 20301203101