Search a number
-
+
385614144 = 26323891721
BaseRepresentation
bin10110111111000…
…000000101000000
3222212121020011100
4112333000011000
51242204123034
6102133014400
712361444326
oct2677000500
9885536140
10385614144
1118873a683
12a9184400
1361b75666
14392dbd16
1523cc1099
hex16fc0140

385614144 has 84 divisors (see below), whose sum is σ = 1108778580. Its totient is φ = 128133120.

The previous prime is 385614121. The next prime is 385614157. The reversal of 385614144 is 441416583.

385614144 is a `hidden beast` number, since 38 + 5 + 614 + 1 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 187142400 + 198471744 = 13680^2 + 14088^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 385614099 and 385614108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223204 + ... + 224924.

It is an arithmetic number, because the mean of its divisors is an integer number (13199745).

Almost surely, 2385614144 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 385614144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554389290).

385614144 is an abundant number, since it is smaller than the sum of its proper divisors (723164436).

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

385614144 is a wasteful number, since it uses less digits than its factorization.

385614144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128 (or 2115 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 385614144 is about 19637.0604724842. The cubic root of 385614144 is about 727.8652489797.

The spelling of 385614144 in words is "three hundred eighty-five million, six hundred fourteen thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 144 192 288 389 576 778 1167 1556 1721 2334 3112 3442 3501 4668 5163 6224 6884 7002 9336 10326 12448 13768 14004 15489 18672 20652 24896 27536 28008 30978 37344 41304 55072 56016 61956 74688 82608 110144 112032 123912 165216 224064 247824 330432 495648 669469 991296 1338938 2008407 2677876 4016814 5355752 6025221 8033628 10711504 12050442 16067256 21423008 24100884 32134512 42846016 48201768 64269024 96403536 128538048 192807072 385614144