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105044621 = 1112775193
BaseRepresentation
bin1100100001011…
…01101010001101
321022122211010112
412100231222031
5203342411441
614231245405
72413602353
oct620555215
9238584115
10105044621
1154327640
122b219865
13189bb9a6
14dd457d3
15934e4eb
hex642da8d

105044621 has 8 divisors (see below), whose sum is σ = 115497984. Its totient is φ = 94741920.

The previous prime is 105044609. The next prime is 105044627. The reversal of 105044621 is 126440501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-105044621 is a prime.

It is a super-2 number, since 2×1050446212 = 22068744802067282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105044627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36200 + ... + 38993.

It is an arithmetic number, because the mean of its divisors is an integer number (14437248).

Almost surely, 2105044621 is an apocalyptic number.

105044621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

105044621 is a deficient number, since it is larger than the sum of its proper divisors (10453363).

105044621 is a wasteful number, since it uses less digits than its factorization.

105044621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75331.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 105044621 is about 10249.1278165510. The cubic root of 105044621 is about 471.8362165748.

The spelling of 105044621 in words is "one hundred five million, forty-four thousand, six hundred twenty-one".

Divisors: 1 11 127 1397 75193 827123 9549511 105044621