Search a number
-
+
389439352 = 231914871723
BaseRepresentation
bin10111001101100…
…101111101111000
31000010210120100201
4113031211331320
51244144024402
6102351011544
712436115461
oct2715457570
91003716321
10389439352
1118a912605
12aa509bb4
13628b47b3
1439a15d68
15242c9687
hex17365f78

389439352 has 32 divisors (see below), whose sum is σ = 769593600. Its totient is φ = 184240224.

The previous prime is 389439343. The next prime is 389439359. The reversal of 389439352 is 253934983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389439359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225163 + ... + 226885.

It is an arithmetic number, because the mean of its divisors is an integer number (24049800).

Almost surely, 2389439352 is an apocalyptic number.

It is an amenable number.

389439352 is a deficient number, since it is larger than the sum of its proper divisors (380154248).

389439352 is a wasteful number, since it uses less digits than its factorization.

389439352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3235 (or 3231 counting only the distinct ones).

The product of its digits is 699840, while the sum is 46.

The square root of 389439352 is about 19734.2177954942. The cubic root of 389439352 is about 730.2640891001.

The spelling of 389439352 in words is "three hundred eighty-nine million, four hundred thirty-nine thousand, three hundred fifty-two".

Divisors: 1 2 4 8 19 38 76 152 1487 1723 2974 3446 5948 6892 11896 13784 28253 32737 56506 65474 113012 130948 226024 261896 2562101 5124202 10248404 20496808 48679919 97359838 194719676 389439352