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389113504 = 25134612029
BaseRepresentation
bin10111001100010…
…110011010100000
31000010012000101021
4113030112122200
51244103113004
6102340015224
712433260463
oct2714263240
91003160337
10389113504
1118a70a80a
12aa391514
13627cc3a0
143996d2da
1524262d54
hex173166a0

389113504 has 48 divisors (see below), whose sum is σ = 827192520. Its totient is φ = 179112960.

The previous prime is 389113489. The next prime is 389113511. The reversal of 389113504 is 405311983.

It can be written as a sum of positive squares in 4 ways, for example, as 347897104 + 41216400 = 18652^2 + 6420^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 389113504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190762 + ... + 192790.

Almost surely, 2389113504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389113504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413596260).

389113504 is an abundant number, since it is smaller than the sum of its proper divisors (438079016).

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

389113504 is a wasteful number, since it uses less digits than its factorization.

389113504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513 (or 2505 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 389113504 is about 19725.9601540711. The cubic root of 389113504 is about 730.0603590549.

The spelling of 389113504 in words is "three hundred eighty-nine million, one hundred thirteen thousand, five hundred four".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 461 922 1844 2029 3688 4058 5993 7376 8116 11986 14752 16232 23972 26377 32464 47944 52754 64928 95888 105508 191776 211016 422032 844064 935369 1870738 3741476 7482952 12159797 14965904 24319594 29931808 48639188 97278376 194556752 389113504