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838282072 = 23838811433
BaseRepresentation
bin110001111101110…
…010101101011000
32011102101010211011
4301331302231120
53204100011242
6215103143304
726526165025
oct6175625530
92142333734
10838282072
113a0208801
121b48a4b34
131048977c4
147d49254c
154d8d9d17
hex31f72b58

838282072 has 32 divisors (see below), whose sum is σ = 1593632880. Its totient is φ = 413332480.

The previous prime is 838282061. The next prime is 838282073. The reversal of 838282072 is 270282838.

It is a happy number.

It is a super-2 number, since 2×8382820722 = 1405433664473226368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838282073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584268 + ... + 585700.

Almost surely, 2838282072 is an apocalyptic number.

It is an amenable number.

838282072 is a deficient number, since it is larger than the sum of its proper divisors (755350808).

838282072 is a wasteful number, since it uses less digits than its factorization.

838282072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403 (or 2399 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 838282072 is about 28953.1012501252. The cubic root of 838282072 is about 942.8951301937.

The spelling of 838282072 in words is "eight hundred thirty-eight million, two hundred eighty-two thousand, seventy-two".

Divisors: 1 2 4 8 83 166 332 664 881 1433 1762 2866 3524 5732 7048 11464 73123 118939 146246 237878 292492 475756 584984 951512 1262473 2524946 5049892 10099784 104785259 209570518 419141036 838282072