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385744630 = 25107360509
BaseRepresentation
bin10110111111011…
…111111011110110
3222212211212011011
4112333133323312
51242222312010
6102135502434
712362526625
oct2677377366
9885755134
10385744630
11188819717
12a9227a1a
1361bbcb7b
14393336bc
1523ce9a8a
hex16fdfef6

385744630 has 16 divisors (see below), whose sum is σ = 700831440. Its totient is φ = 152855392.

The previous prime is 385744621. The next prime is 385744649. The reversal of 385744630 is 36447583.

385744630 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179185 + ... + 181324.

It is an arithmetic number, because the mean of its divisors is an integer number (43801965).

Almost surely, 2385744630 is an apocalyptic number.

385744630 is a deficient number, since it is larger than the sum of its proper divisors (315086810).

385744630 is a wasteful number, since it uses less digits than its factorization.

385744630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360623.

The product of its (nonzero) digits is 241920, while the sum is 40.

The square root of 385744630 is about 19640.3826337472. The cubic root of 385744630 is about 727.9473392553.

The spelling of 385744630 in words is "three hundred eighty-five million, seven hundred forty-four thousand, six hundred thirty".

Divisors: 1 2 5 10 107 214 535 1070 360509 721018 1802545 3605090 38574463 77148926 192872315 385744630