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427235473018 = 21815581211469
BaseRepresentation
bin1100011011110010011…
…01111111011001111010
31111211202202220202021201
412031321031333121322
523444434240114033
6524134054524414
742603202413304
oct6157115773172
91454682822251
10427235473018
1115520a317392
126a97436670a
1331399046353
141696d3bc974
15b1a799347d
hex637937f67a

427235473018 has 16 divisors (see below), whose sum is σ = 644512344840. Its totient is φ = 212398459200.

The previous prime is 427235473003. The next prime is 427235473081. The reversal of 427235473018 is 810374532724.

It can be written as a sum of positive squares in 4 ways, for example, as 208513696689 + 218721776329 = 456633^2 + 467677^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1914588 + ... + 2126056.

Almost surely, 2427235473018 is an apocalyptic number.

427235473018 is a deficient number, since it is larger than the sum of its proper divisors (217276871822).

427235473018 is a wasteful number, since it uses less digits than its factorization.

427235473018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217233.

The product of its (nonzero) digits is 1128960, while the sum is 46.

The spelling of 427235473018 in words is "four hundred twenty-seven billion, two hundred thirty-five million, four hundred seventy-three thousand, eighteen".

Divisors: 1 2 181 362 5581 11162 211469 422938 1010161 2020322 38275889 76551778 1180208489 2360416978 213617736509 427235473018