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205428500222 = 21143487214723
BaseRepresentation
bin1011111101010001111…
…1100010011011111110
3201122020122222001212012
42333110133202123332
511331204144001342
6234212245411222
720561465304161
oct2772437423376
9648218861765
10205428500222
117a13803a820
1233991709b12
13164aab8a79a
149d2b045ad8
155524d1db82
hex2fd47e26fe

205428500222 has 16 divisors (see below), whose sum is σ = 336165023232. Its totient is φ = 93374008920.

The previous prime is 205428500219. The next prime is 205428500227. The reversal of 205428500222 is 222005824502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205428500227) 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, 849353 + ... + 1064075.

It is an arithmetic number, because the mean of its divisors is an integer number (21010313952).

Almost surely, 2205428500222 is an apocalyptic number.

205428500222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

205428500222 is a deficient number, since it is larger than the sum of its proper divisors (130736523010).

205428500222 is a wasteful number, since it uses less digits than its factorization.

205428500222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258223.

The product of its (nonzero) digits is 25600, while the sum is 32.

The spelling of 205428500222 in words is "two hundred five billion, four hundred twenty-eight million, five hundred thousand, two hundred twenty-two".

Divisors: 1 2 11 22 43487 86974 214723 429446 478357 956714 2361953 4723906 9337659101 18675318202 102714250111 205428500222