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204348214553 = 71719293116537
BaseRepresentation
bin1011111001010000011…
…0100100110100011001
3201112110101012212111212
42332110012210310121
511322001120331203
6233513135232505
720522640110240
oct2762406446431
9645411185455
10204348214553
117973327014a
123372b978735
13163681201b2
149c67799957
1554b007e1d8
hex2f941a4d19

204348214553 has 32 divisors (see below), whose sum is σ = 269268883200. Its totient is φ = 150790477824.

The previous prime is 204348214487. The next prime is 204348214571. The reversal of 204348214553 is 355412843402.

It is not a de Polignac number, because 204348214553 - 28 = 204348214297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 204348214553.

It is not an unprimeable number, because it can be changed into a prime (204348214253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1492700 + ... + 1623837.

It is an arithmetic number, because the mean of its divisors is an integer number (8414652600).

Almost surely, 2204348214553 is an apocalyptic number.

It is an amenable number.

204348214553 is a deficient number, since it is larger than the sum of its proper divisors (64920668647).

204348214553 is a wasteful number, since it uses less digits than its factorization.

204348214553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3116609.

The product of its (nonzero) digits is 460800, while the sum is 41.

The spelling of 204348214553 in words is "two hundred four billion, three hundred forty-eight million, two hundred fourteen thousand, five hundred fifty-three".

Divisors: 1 7 17 19 29 119 133 203 323 493 551 2261 3451 3857 9367 65569 3116537 21815759 52981129 59214203 90379573 370867903 414499421 632657011 1006641451 1536452741 1717211887 7046490157 10755169187 12020483209 29192602079 204348214553