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8243472 = 243263653
BaseRepresentation
bin11111011100100100010000
3120111210220210
4133130210100
54102242342
6452404120
7130032306
oct37344420
916453823
108243472
114720496
122916640
1319281c3
141148276
15acc79c
hex7dc910

8243472 has 40 divisors (see below), whose sum is σ = 21409344. Its totient is φ = 2733184.

The previous prime is 8243441. The next prime is 8243497. The reversal of 8243472 is 2743428.

It is a super-2 number, since 2×82434722 = 135909661229568, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12298 + ... + 12950.

Almost surely, 28243472 is an apocalyptic number.

It is an amenable number.

8243472 is an abundant number, since it is smaller than the sum of its proper divisors (13165872).

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

8243472 is a wasteful number, since it uses less digits than its factorization.

8243472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927 (or 921 counting only the distinct ones).

The product of its digits is 10752, while the sum is 30.

The square root of 8243472 is about 2871.1447194455. The cubic root of 8243472 is about 202.0086915843.

The spelling of 8243472 in words is "eight million, two hundred forty-three thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 263 526 653 789 1052 1306 1578 1959 2104 2612 3156 3918 4208 5224 6312 7836 10448 12624 15672 31344 171739 343478 515217 686956 1030434 1373912 2060868 2747824 4121736 8243472