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44029861 = 616011201
BaseRepresentation
bin1010011111110…
…1011110100101
310001211221121121
42213331132211
542232423421
64211413541
71043150641
oct247753645
9101757547
1044029861
1122943317
12128b42b1
139177b95
145bc1c21
153cead41
hex29fd7a5

44029861 has 8 divisors (see below), whose sum is σ = 44863448. Its totient is φ = 43200000.

The previous prime is 44029837. The next prime is 44029873. The reversal of 44029861 is 16892044.

It can be written as a sum of positive squares in 4 ways, for example, as 390625 + 43639236 = 625^2 + 6606^2 .

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

It is a 5-Lehmer number, since φ(44029861) divides (44029861-1)5.

It is a cyclic number.

It is not a de Polignac number, because 44029861 - 225 = 10475429 is a prime.

It is the 6636-th Hogben number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44029891) by changing a digit.

It is a nontrivial repunit in base 6635.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36061 + ... + 37261.

It is an arithmetic number, because the mean of its divisors is an integer number (5607931).

Almost surely, 244029861 is an apocalyptic number.

It is an amenable number.

44029861 is a deficient number, since it is larger than the sum of its proper divisors (833587).

44029861 is a wasteful number, since it uses less digits than its factorization.

44029861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1863.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 44029861 is about 6635.5000565142. The cubic root of 44029861 is about 353.1146789058.

The spelling of 44029861 in words is "forty-four million, twenty-nine thousand, eight hundred sixty-one".

Divisors: 1 61 601 1201 36661 73261 721801 44029861