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1384111994 = 23157139097
BaseRepresentation
bin101001001111111…
…1101111101111010
310120110110011201012
41102133331331322
510313313040434
6345202153522
746204520636
oct12237757572
93513404635
101384111994
11650327911
123276528a2
131909a7ba5
14d1b77dc6
15817a73ce
hex527fdf7a

1384111994 has 16 divisors (see below), whose sum is σ = 2146949376. Its totient is φ = 668541600.

The previous prime is 1384111973. The next prime is 1384111999. The reversal of 1384111994 is 4991114831.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1384111999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15854 + ... + 54950.

It is an arithmetic number, because the mean of its divisors is an integer number (134184336).

Almost surely, 21384111994 is an apocalyptic number.

1384111994 is a deficient number, since it is larger than the sum of its proper divisors (762837382).

1384111994 is a wasteful number, since it uses less digits than its factorization.

1384111994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39701.

The product of its digits is 31104, while the sum is 41.

The square root of 1384111994 is about 37203.6556537123. The cubic root of 1384111994 is about 1114.4409898685.

The spelling of 1384111994 in words is "one billion, three hundred eighty-four million, one hundred eleven thousand, nine hundred ninety-four".

Divisors: 1 2 31 62 571 1142 17701 35402 39097 78194 1212007 2424014 22324387 44648774 692055997 1384111994