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44720481 = 3131146679
BaseRepresentation
bin1010101010011…
…0000101100001
310010011000222010
42222212011201
542422023411
64234303133
71052055261
oct252460541
9103130863
1044720481
1123275183
1212b87aa9
13935a330
145d217a1
153dd57a6
hex2aa6161

44720481 has 8 divisors (see below), whose sum is σ = 64214080. Its totient is φ = 27520272.

The previous prime is 44720479. The next prime is 44720497. The reversal of 44720481 is 18402744.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44720481 - 21 = 44720479 is a prime.

It is a super-2 number, since 2×447204812 = 3999842841742722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44720461) 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 7 ways as a sum of consecutive naturals, for example, 573301 + ... + 573378.

It is an arithmetic number, because the mean of its divisors is an integer number (8026760).

Almost surely, 244720481 is an apocalyptic number.

It is an amenable number.

44720481 is a deficient number, since it is larger than the sum of its proper divisors (19493599).

44720481 is a wasteful number, since it uses less digits than its factorization.

44720481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146695.

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 44720481 is about 6687.3373625083. The cubic root of 44720481 is about 354.9513416084.

The spelling of 44720481 in words is "forty-four million, seven hundred twenty thousand, four hundred eighty-one".

Divisors: 1 3 13 39 1146679 3440037 14906827 44720481