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2181022314 = 232973171707
BaseRepresentation
bin1000000111111111…
…1100001001101010
312121222222102011020
42001333330021222
513431320203224
61000230513310
7105022245432
oct20177741152
95558872136
102181022314
11a1a148389
1250a505836
13289b18663
1416993b2c2
15cb71dc79
hex81ffc26a

2181022314 has 32 divisors (see below), whose sum is σ = 4574301120. Its totient is φ = 692318592.

The previous prime is 2181022301. The next prime is 2181022321. The reversal of 2181022314 is 4132201812.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73152 + ... + 98555.

It is an arithmetic number, because the mean of its divisors is an integer number (142946910).

Almost surely, 22181022314 is an apocalyptic number.

2181022314 is an abundant number, since it is smaller than the sum of its proper divisors (2393278806).

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

2181022314 is a wasteful number, since it uses less digits than its factorization.

2181022314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171814.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 2181022314 is about 46701.4166166295. The cubic root of 2181022314 is about 1296.8409120640.

The spelling of 2181022314 in words is "two billion, one hundred eighty-one million, twenty-two thousand, three hundred fourteen".

Divisors: 1 2 3 6 29 58 73 87 146 174 219 438 2117 4234 6351 12702 171707 343414 515121 1030242 4979503 9959006 12534611 14938509 25069222 29877018 37603833 75207666 363503719 727007438 1090511157 2181022314