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1384406898 = 23724708867
BaseRepresentation
bin101001010000100…
…0101111101110010
310120111000011020120
41102201011331302
510313402010043
6345212351110
746210156500
oct12241057562
93514004216
101384406898
11650509436
12327775496
13190a7c1a4
14d1c13670
1581814983
hex52845f72

1384406898 has 24 divisors (see below), whose sum is σ = 3220865712. Its totient is φ = 395544744.

The previous prime is 1384406879. The next prime is 1384406923. The reversal of 1384406898 is 8986044831.

It is a self number, because there is not a number n which added to its sum of digits gives 1384406898.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2354140 + ... + 2354727.

It is an arithmetic number, because the mean of its divisors is an integer number (134202738).

Almost surely, 21384406898 is an apocalyptic number.

1384406898 is an abundant number, since it is smaller than the sum of its proper divisors (1836458814).

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

1384406898 is a wasteful number, since it uses less digits than its factorization.

1384406898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4708886 (or 4708879 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The square root of 1384406898 is about 37207.6188165811. The cubic root of 1384406898 is about 1114.5201332154.

The spelling of 1384406898 in words is "one billion, three hundred eighty-four million, four hundred six thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 4708867 9417734 14126601 28253202 32962069 65924138 98886207 197772414 230734483 461468966 692203449 1384406898