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1839064164 = 223721893621
BaseRepresentation
bin110110110011101…
…1110010001100100
311202011112010202120
41231213132101210
512231300023124
6502253305540
763400534050
oct15547362144
94664463676
101839064164
11864116143
12433a952b0
13234019962
14136364c60
15ab6c2d79
hex6d9de464

1839064164 has 24 divisors (see below), whose sum is σ = 4904171328. Its totient is φ = 525446880.

The previous prime is 1839064141. The next prime is 1839064177. The reversal of 1839064164 is 4614609381.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 7 ways as a sum of consecutive naturals, for example, 10946727 + ... + 10946894.

It is an arithmetic number, because the mean of its divisors is an integer number (204340472).

Almost surely, 21839064164 is an apocalyptic number.

1839064164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1839064164 is an abundant number, since it is smaller than the sum of its proper divisors (3065107164).

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

1839064164 is a wasteful number, since it uses less digits than its factorization.

1839064164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21893635 (or 21893633 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 1839064164 is about 42884.3113970599. The cubic root of 1839064164 is about 1225.1773535249.

The spelling of 1839064164 in words is "one billion, eight hundred thirty-nine million, sixty-four thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 21893621 43787242 65680863 87574484 131361726 153255347 262723452 306510694 459766041 613021388 919532082 1839064164