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20552552252 = 2212294180747
BaseRepresentation
bin10011001001000001…
…110000111100111100
31222001100020211102222
4103021001300330330
5314042423133002
613235224304512
71325211545261
oct231101607474
958040224388
1020552552252
11879741a781
123b97012138
131c26ccca2b
14dcd83b268
158045151a2
hex4c9070f3c

20552552252 has 12 divisors (see below), whose sum is σ = 35996240280. Its totient is φ = 10267912176.

The previous prime is 20552552239. The next prime is 20552552281. The reversal of 20552552252 is 25225525502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2085458 + ... + 2095289.

It is an arithmetic number, because the mean of its divisors is an integer number (2999686690).

Almost surely, 220552552252 is an apocalyptic number.

It is an amenable number.

20552552252 is a deficient number, since it is larger than the sum of its proper divisors (15443688028).

20552552252 is a wasteful number, since it uses less digits than its factorization.

20552552252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4181980 (or 4181978 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 35.

The spelling of 20552552252 in words is "twenty billion, five hundred fifty-two million, five hundred fifty-two thousand, two hundred fifty-two".

Divisors: 1 2 4 1229 2458 4916 4180747 8361494 16722988 5138138063 10276276126 20552552252