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388741340830 = 25192046007057
BaseRepresentation
bin1011010100000101100…
…10100001111010011110
31101011102001102020002011
411222002302201322132
522332120240401310
6454330232021434
740041241606543
oct5520262417236
91334361366064
10388741340830
1113a9563970a7
126341083187a
132a872c5bb3b
1414b5ac00bca
15a1a32b478a
hex5a82ca1e9e

388741340830 has 16 divisors (see below), whose sum is σ = 736562540880. Its totient is φ = 147312508032.

The previous prime is 388741340803. The next prime is 388741340837. The reversal of 388741340830 is 38043147883.

It is a happy number.

It is a super-2 number, since 2×3887413408302 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388741340837) 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, 1023003339 + ... + 1023003718.

It is an arithmetic number, because the mean of its divisors is an integer number (46035158805).

Almost surely, 2388741340830 is an apocalyptic number.

388741340830 is a deficient number, since it is larger than the sum of its proper divisors (347821200050).

388741340830 is a wasteful number, since it uses less digits than its factorization.

388741340830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046007083.

The product of its (nonzero) digits is 1548288, while the sum is 49.

The spelling of 388741340830 in words is "three hundred eighty-eight billion, seven hundred forty-one million, three hundred forty thousand, eight hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 2046007057 4092014114 10230035285 20460070570 38874134083 77748268166 194370670415 388741340830