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388873876 = 22293352361
BaseRepresentation
bin10111001011011…
…011111010010100
31000002201211200011
4113023123322110
51244022431001
6102330530004
712431242036
oct2713337224
91002654604
10388873876
1118a566776
12aa296904
13627472b1
1439909c56
1524216d51
hex172dbe94

388873876 has 12 divisors (see below), whose sum is σ = 703996020. Its totient is φ = 187732160.

The previous prime is 388873871. The next prime is 388873913. The reversal of 388873876 is 678378883.

It can be written as a sum of positive squares in 2 ways, for example, as 136890000 + 251983876 = 11700^2 + 15874^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a self number, because there is not a number n which added to its sum of digits gives 388873876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388873871) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1676065 + ... + 1676296.

It is an arithmetic number, because the mean of its divisors is an integer number (58666335).

Almost surely, 2388873876 is an apocalyptic number.

It is an amenable number.

388873876 is a deficient number, since it is larger than the sum of its proper divisors (315122144).

388873876 is a wasteful number, since it uses less digits than its factorization.

388873876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3352394 (or 3352392 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 58.

The square root of 388873876 is about 19719.8852937840. The cubic root of 388873876 is about 729.9104637794.

The spelling of 388873876 in words is "three hundred eighty-eight million, eight hundred seventy-three thousand, eight hundred seventy-six".

Divisors: 1 2 4 29 58 116 3352361 6704722 13409444 97218469 194436938 388873876