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385258384 = 24727012
BaseRepresentation
bin10110111101101…
…001001110010000
3222211221011011001
4112331221032100
51242111232014
6102121231344
712355433200
oct2675511620
9884834131
10385258384
11188517365
12a9032554
1361a7c754
1439248400
1523c50974
hex16f69390

385258384 has 45 divisors (see below), whose sum is σ = 869546001. Its totient is φ = 164875200.

The previous prime is 385258373. The next prime is 385258397. The reversal of 385258384 is 483852583.

It is a happy number.

The square root of 385258384 is 19628.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 332259984 + 52998400 = 18228^2 + 7280^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 549234 + ... + 549934.

Almost surely, 2385258384 is an apocalyptic number.

385258384 is the 19628-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385258384

385258384 is an abundant number, since it is smaller than the sum of its proper divisors (484287617).

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

385258384 is an frugal number, since it uses more digits than its factorization.

385258384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424 (or 710 counting only the distinct ones).

The product of its digits is 921600, while the sum is 46.

The cubic root of 385258384 is about 727.6413420696.

Multiplying 385258384 by its product of digits (921600), we get a square (355054126694400 = 188428802).

The spelling of 385258384 in words is "three hundred eighty-five million, two hundred fifty-eight thousand, three hundred eighty-four".

Divisors: 1 2 4 7 8 14 16 28 49 56 98 112 196 392 701 784 1402 2804 4907 5608 9814 11216 19628 34349 39256 68698 78512 137396 274792 491401 549584 982802 1965604 3439807 3931208 6879614 7862416 13759228 24078649 27518456 48157298 55036912 96314596 192629192 385258384