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44088161 = 1341181457
BaseRepresentation
bin1010100000101…
…1101101100001
310001221220120212
42220023231201
542241310121
64212543505
71043512625
oct250135541
9101856525
1044088161
11229830a7
1212921b95
139198590
145bd9185
153d0d25b
hex2a0bb61

44088161 has 16 divisors (see below), whose sum is σ = 49013328. Its totient is φ = 39398400.

The previous prime is 44088137. The next prime is 44088199. The reversal of 44088161 is 16188044.

It can be written as a sum of positive squares in 8 ways, for example, as 14592400 + 29495761 = 3820^2 + 5431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-44088161 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44088101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96245 + ... + 96701.

It is an arithmetic number, because the mean of its divisors is an integer number (3063333).

Almost surely, 244088161 is an apocalyptic number.

44088161 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

44088161 is a deficient number, since it is larger than the sum of its proper divisors (4925167).

44088161 is a wasteful number, since it uses less digits than its factorization.

44088161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 44088161 is about 6639.8916406821. The cubic root of 44088161 is about 353.2704633799.

The spelling of 44088161 in words is "forty-four million, eighty-eight thousand, one hundred sixty-one".

Divisors: 1 13 41 181 457 533 2353 5941 7421 18737 82717 96473 243581 1075321 3391397 44088161