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388330030 = 25117944687
BaseRepresentation
bin10111001001010…
…111001000101110
31000001201012122201
4113021113020232
51243403030110
6102311132114
712423515344
oct2711271056
91001635581
10388330030
1118a225110
12aa07403a
13625b68aa
1439807994
152415ab3a
hex1725722e

388330030 has 32 divisors (see below), whose sum is σ = 772208640. Its totient is φ = 139420320.

The previous prime is 388330021. The next prime is 388330043. The reversal of 388330030 is 30033883.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13654 + ... + 31033.

It is an arithmetic number, because the mean of its divisors is an integer number (24131520).

Almost surely, 2388330030 is an apocalyptic number.

388330030 is a deficient number, since it is larger than the sum of its proper divisors (383878610).

388330030 is a wasteful number, since it uses less digits than its factorization.

388330030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44784.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 388330030 is about 19706.0911902894. The cubic root of 388330030 is about 729.5700414252.

The spelling of 388330030 in words is "three hundred eighty-eight million, three hundred thirty thousand, thirty".

Divisors: 1 2 5 10 11 22 55 79 110 158 395 790 869 1738 4345 8690 44687 89374 223435 446870 491557 983114 2457785 3530273 4915570 7060546 17651365 35302730 38833003 77666006 194165015 388330030