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43072 = 26673
BaseRepresentation
bin1010100001000000
32012002021
422201000
52334242
6531224
7236401
oct124100
965067
1043072
112a3a7
1220b14
13167b3
14119a8
15cb67
hexa840

43072 has 14 divisors (see below), whose sum is σ = 85598. Its totient is φ = 21504.

The previous prime is 43067. The next prime is 43093. The reversal of 43072 is 27034.

It can be written as a sum of positive squares in only one way, i.e., 33856 + 9216 = 184^2 + 96^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an alternating number because its digits alternate between even and odd.

It is a pancake number, because a pancake can be divided into 43072 parts by 293 straight cuts.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273 + ... + 400.

243072 is an apocalyptic number.

It is an amenable number.

43072 is a deficient number, since it is larger than the sum of its proper divisors (42526).

43072 is an equidigital number, since it uses as much as digits as its factorization.

43072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 43072 is about 207.5379483372. The cubic root of 43072 is about 35.0535235499.

The spelling of 43072 in words is "forty-three thousand, seventy-two", and is thus an iban number.

Divisors: 1 2 4 8 16 32 64 673 1346 2692 5384 10768 21536 43072