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11210520205 = 517619213067
BaseRepresentation
bin10100111000011001…
…01111011010001101
31001221021120102200001
422130030233122031
5140424343121310
65052224204301
7544543564243
oct123414573215
931837512601
1011210520205
114833056835
12220a469691
131098726211
14784c30793
154592c593a
hex29c32f68d

11210520205 has 16 divisors (see below), whose sum is σ = 14267033280. Its totient is φ = 8427186432.

The previous prime is 11210520187. The next prime is 11210520257. The reversal of 11210520205 is 50202501211.

It is a cyclic number.

It is not a de Polignac number, because 11210520205 - 217 = 11210389133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53919 + ... + 159148.

It is an arithmetic number, because the mean of its divisors is an integer number (891689580).

Almost surely, 211210520205 is an apocalyptic number.

It is an amenable number.

11210520205 is a deficient number, since it is larger than the sum of its proper divisors (3056513075).

11210520205 is a wasteful number, since it uses less digits than its factorization.

11210520205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213708.

The product of its (nonzero) digits is 200, while the sum is 19.

The spelling of 11210520205 in words is "eleven billion, two hundred ten million, five hundred twenty thousand, two hundred five".

Divisors: 1 5 17 85 619 3095 10523 52615 213067 1065335 3622139 18110695 131888473 659442365 2242104041 11210520205