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218390996060230 = 25721427312330701
BaseRepresentation
bin110001101010000000011101…
…101111100000100001000110
31001122020222100000022112220011
4301222000131233200201012
5212111104224442411410
62052251234421100434
764000141320452200
oct6152003557404106
91048228300275804
10218390996060230
116364a11291a764
12205b177a85771a
1394b224b11a276
143bd0275835770
151a3acb713718a
hexc6a01dbe0846

218390996060230 has 48 divisors (see below), whose sum is σ = 457604456759856. Its totient is φ = 74824441137600.

The previous prime is 218390996060219. The next prime is 218390996060231. The reversal of 218390996060230 is 32060699093812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218390996060231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155466121 + ... + 156864580.

It is an arithmetic number, because the mean of its divisors is an integer number (9533426182497).

Almost surely, 2218390996060230 is an apocalyptic number.

218390996060230 is an abundant number, since it is smaller than the sum of its proper divisors (239213460699626).

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

218390996060230 is a wasteful number, since it uses less digits than its factorization.

218390996060230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312332149 (or 312332142 counting only the distinct ones).

The product of its (nonzero) digits is 7558272, while the sum is 58.

The spelling of 218390996060230 in words is "two hundred eighteen trillion, three hundred ninety billion, nine hundred ninety-six million, sixty thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 1427 2854 7135 9989 14270 19978 49945 69923 99890 139846 349615 699230 312330701 624661402 1561653505 2186314907 3123307010 4372629814 10931574535 15304204349 21863149070 30608408698 76521021745 153042043490 445695910327 891391820654 2228479551635 3119871372289 4456959103270 6239742744578 15599356861445 21839099606023 31198713722890 43678199212046 109195498030115 218390996060230