Search a number
-
+
389743396 = 227611731319
BaseRepresentation
bin10111001110110…
…000001100100100
31000011101000102121
4113032300030210
51244233242041
6102401315324
712441523060
oct2716601444
91004330377
10389743396
1118aaaaa89
12aa635b44
136298ccc3
1439a94aa0
15243397d1
hex173b0324

389743396 has 48 divisors (see below), whose sum is σ = 797448960. Its totient is φ = 163221120.

The previous prime is 389743391. The next prime is 389743399. The reversal of 389743396 is 693347983.

It is a super-2 number, since 2×3897433962 = 303799829451225632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (389743391) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 294825 + ... + 296143.

It is an arithmetic number, because the mean of its divisors is an integer number (16613520).

Almost surely, 2389743396 is an apocalyptic number.

It is an amenable number.

389743396 is an abundant number, since it is smaller than the sum of its proper divisors (407705564).

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

389743396 is a wasteful number, since it uses less digits than its factorization.

389743396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564 (or 1562 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 52.

The square root of 389743396 is about 19741.9197648050. The cubic root of 389743396 is about 730.4540841590.

The spelling of 389743396 in words is "three hundred eighty-nine million, seven hundred forty-three thousand, three hundred ninety-six".

Divisors: 1 2 4 7 14 28 61 122 173 244 346 427 692 854 1211 1319 1708 2422 2638 4844 5276 9233 10553 18466 21106 36932 42212 73871 80459 147742 160918 228187 295484 321836 456374 563213 912748 1126426 1597309 2252852 3194618 6389236 13919407 27838814 55677628 97435849 194871698 389743396