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394437252 = 223112271651
BaseRepresentation
bin10111100000101…
…010001010000100
31000111012111012010
4113200222022010
51301433443002
6103050054220
712526442556
oct2740521204
91014174163
10394437252
11192716600
12b011a370
1363944631
143a5574d6
152496546c
hex1782a284

394437252 has 36 divisors (see below), whose sum is σ = 1011632048. Its totient is φ = 119526000.

The previous prime is 394437233. The next prime is 394437259. The reversal of 394437252 is 252734493.

It is a self number, because there is not a number n which added to its sum of digits gives 394437252.

It is not an unprimeable number, because it can be changed into a prime (394437259) by changing a digit.

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, 134374 + ... + 137277.

Almost surely, 2394437252 is an apocalyptic number.

It is an amenable number.

394437252 is an abundant number, since it is smaller than the sum of its proper divisors (617194796).

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

394437252 is a wasteful number, since it uses less digits than its factorization.

394437252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271680 (or 271667 counting only the distinct ones).

The product of its digits is 181440, while the sum is 39.

The square root of 394437252 is about 19860.4444059039. Note that the first 4 decimals coincide. The cubic root of 394437252 is about 733.3747865456.

The spelling of 394437252 in words is "three hundred ninety-four million, four hundred thirty-seven thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 121 132 242 363 484 726 1452 271651 543302 814953 1086604 1629906 2988161 3259812 5976322 8964483 11952644 17928966 32869771 35857932 65739542 98609313 131479084 197218626 394437252