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20201152450 = 2521921264371
BaseRepresentation
bin10010110100000101…
…010001111111000010
31221010212000212112111
4102310011101333002
5312332443334300
613140312445534
71313413651123
oct226405217702
957125025474
1020201152450
118627029916
123ab93a98aa
131b9c27665b
14d98cc804a
157d37519ba
hex4b4151fc2

20201152450 has 24 divisors (see below), whose sum is σ = 39551731920. Its totient is φ = 7655173200.

The previous prime is 20201152409. The next prime is 20201152453. The reversal of 20201152450 is 5425110202.

It is not an unprimeable number, because it can be changed into a prime (20201152453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10631236 + ... + 10633135.

It is an arithmetic number, because the mean of its divisors is an integer number (1647988830).

Almost surely, 220201152450 is an apocalyptic number.

20201152450 is a deficient number, since it is larger than the sum of its proper divisors (19350579470).

20201152450 is a wasteful number, since it uses less digits than its factorization.

20201152450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21264402 (or 21264397 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 20201152450 its reverse (5425110202), we get a palindrome (25626262652).

The spelling of 20201152450 in words is "twenty billion, two hundred one million, one hundred fifty-two thousand, four hundred fifty".

Divisors: 1 2 5 10 19 25 38 50 95 190 475 950 21264371 42528742 106321855 212643710 404023049 531609275 808046098 1063218550 2020115245 4040230490 10100576225 20201152450