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205042342230 = 232511897123087
BaseRepresentation
bin1011111011110101111…
…0011101100101010110
3201121020202100012200100
42332331132131211112
511324411314422410
6234110052554530
720546066103135
oct2767536354526
9647222305610
10205042342230
1179a5a069590
12338a4322a46
1316448b8472b
149cd1a4591c
155500e918c0
hex2fbd79d956

205042342230 has 96 divisors (see below), whose sum is σ = 581664665088. Its totient is φ = 49699540800.

The previous prime is 205042342207. The next prime is 205042342259. The reversal of 205042342230 is 32243240502.

It is a happy number.

205042342230 is a `hidden beast` number, since 2 + 0 + 5 + 0 + 423 + 4 + 2 + 230 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 205042342194 and 205042342203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8869747 + ... + 8892833.

It is an arithmetic number, because the mean of its divisors is an integer number (6059006928).

Almost surely, 2205042342230 is an apocalyptic number.

205042342230 is an abundant number, since it is smaller than the sum of its proper divisors (376622322858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205042342230 is a wasteful number, since it uses less digits than its factorization.

205042342230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32082 (or 32079 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 205042342230 its reverse (32243240502), we get a palindrome (237285582732).

The spelling of 205042342230 in words is "two hundred five billion, forty-two million, three hundred forty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 90 99 110 165 198 330 495 990 8971 17942 23087 26913 44855 46174 53826 69261 80739 89710 98681 115435 134565 138522 161478 197362 207783 230870 253957 269130 296043 346305 403695 415566 493405 507914 592086 692610 761871 807390 888129 986810 1038915 1269785 1480215 1523742 1776258 2077830 2285613 2539570 2960430 3809355 4440645 4571226 7618710 8881290 11428065 22856130 207113477 414226954 621340431 1035567385 1242680862 1864021293 2071134770 2278248247 3106702155 3728042586 4556496494 6213404310 6834744741 9320106465 11391241235 13669489482 18640212930 20504234223 22782482470 34173723705 41008468446 68347447410 102521171115 205042342230