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8021472 = 25383557
BaseRepresentation
bin11110100110010111100000
3120002112101120
4132212113200
54023141342
6443532240
7125116134
oct36462740
916075346
108021472
114589718
12282a080
13187b144
1410cb3c4
15a86aec
hex7a65e0

8021472 has 24 divisors (see below), whose sum is σ = 21056616. Its totient is φ = 2673792.

The previous prime is 8021471. The next prime is 8021539. The reversal of 8021472 is 2741208.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8021471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41683 + ... + 41874.

It is an arithmetic number, because the mean of its divisors is an integer number (877359).

Almost surely, 28021472 is an apocalyptic number.

It is an amenable number.

8021472 is an abundant number, since it is smaller than the sum of its proper divisors (13035144).

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

8021472 is a wasteful number, since it uses less digits than its factorization.

8021472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83570 (or 83562 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 8021472 is about 2832.2203304122. The cubic root of 8021472 is about 200.1787734859.

The spelling of 8021472 in words is "eight million, twenty-one thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 83557 167114 250671 334228 501342 668456 1002684 1336912 2005368 2673824 4010736 8021472