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202105000001 = 4729314676131
BaseRepresentation
bin1011110000111001100…
…1011001000001000001
3201022200001012202122102
42330032121121001001
511302402340000001
6232502403320145
720413231104152
oct2741631310101
9638601182572
10202105000001
1178792004923
1233204680055
131609b46aac8
149ad38ad929
1553cd177e6b
hex2f0e659041

202105000001 has 8 divisors (see below), whose sum is σ = 207109574784. Its totient is φ = 197129778160.

The previous prime is 202104999983. The next prime is 202105000007. The reversal of 202105000001 is 100000501202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-202105000001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202105000007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7324295 + ... + 7351836.

It is an arithmetic number, because the mean of its divisors is an integer number (25888696848).

Almost surely, 2202105000001 is an apocalyptic number.

It is an amenable number.

202105000001 is a deficient number, since it is larger than the sum of its proper divisors (5004574783).

202105000001 is a wasteful number, since it uses less digits than its factorization.

202105000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14676471.

The product of its (nonzero) digits is 20, while the sum is 11.

Adding to 202105000001 its reverse (100000501202), we get a palindrome (302105501203).

The spelling of 202105000001 in words is "two hundred two billion, one hundred five million, one", and thus it is an aban number.

Divisors: 1 47 293 13771 14676131 689778157 4300106383 202105000001