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427389883 = 1016436581
BaseRepresentation
bin11001011110010…
…111001110111011
31002210012122200221
4121132113032323
51333402434013
6110224240511
713406516434
oct3136271673
91083178627
10427389883
111aa283388
12bb170137
136a71152b
1440a9448b
15277c408d
hex197973bb

427389883 has 8 divisors (see below), whose sum is σ = 432358416. Its totient is φ = 422436000.

The previous prime is 427389871. The next prime is 427389889. The reversal of 427389883 is 388983724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-427389883 is a prime.

It is a super-2 number, since 2×4273898832 = 365324224181507378, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 427389883.

It is not an unprimeable number, because it can be changed into a prime (427389889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61653 + ... + 68233.

It is an arithmetic number, because the mean of its divisors is an integer number (54044802).

Almost surely, 2427389883 is an apocalyptic number.

427389883 is a deficient number, since it is larger than the sum of its proper divisors (4968533).

427389883 is a wasteful number, since it uses less digits than its factorization.

427389883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7325.

The product of its digits is 2322432, while the sum is 52.

The square root of 427389883 is about 20673.4100476917. The cubic root of 427389883 is about 753.2539408897.

The spelling of 427389883 in words is "four hundred twenty-seven million, three hundred eighty-nine thousand, eight hundred eighty-three".

Divisors: 1 101 643 6581 64943 664681 4231583 427389883