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4278241287 = 33792005739
BaseRepresentation
bin1111111100000000…
…1100100000000111
3102001011021011202000
43333000030200013
532230212210122
61544305320343
7211006310445
oct37700144007
912034234660
104278241287
1118a5a57001
129b49360b3
13532471728
142c82a1b95
151a08d70ac
hexff00c807

4278241287 has 16 divisors (see below), whose sum is σ = 6418368000. Its totient is φ = 2816056152.

The previous prime is 4278241259. The next prime is 4278241307. The reversal of 4278241287 is 7821428724.

It is not a de Polignac number, because 4278241287 - 27 = 4278241159 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4278241687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1000737 + ... + 1005002.

It is an arithmetic number, because the mean of its divisors is an integer number (401148000).

Almost surely, 24278241287 is an apocalyptic number.

4278241287 is a deficient number, since it is larger than the sum of its proper divisors (2140126713).

4278241287 is a wasteful number, since it uses less digits than its factorization.

4278241287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005827 (or 2005821 counting only the distinct ones).

The product of its digits is 401408, while the sum is 45.

The square root of 4278241287 is about 65408.2661977827. The cubic root of 4278241287 is about 1623.3858574652.

The spelling of 4278241287 in words is "four billion, two hundred seventy-eight million, two hundred forty-one thousand, two hundred eighty-seven".

Divisors: 1 3 9 27 79 237 711 2133 2005739 6017217 18051651 54154953 158453381 475360143 1426080429 4278241287