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105044385 = 3583139607
BaseRepresentation
bin1100100001011…
…01100110100001
321022122210210210
412100231212201
5203342410020
614231244333
72413601565
oct620554641
9238583723
10105044385
1154327446
122b2196a9
13189bb854
14dd456a5
15934e3e0
hex642d9a1

105044385 has 32 divisors (see below), whose sum is σ = 171601920. Its totient is φ = 54859968.

The previous prime is 105044383. The next prime is 105044413. The reversal of 105044385 is 583440501.

It is not a de Polignac number, because 105044385 - 21 = 105044383 is a prime.

It is a super-2 number, since 2×1050443852 = 22068645640056450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105044383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172752 + ... + 173358.

It is an arithmetic number, because the mean of its divisors is an integer number (5362560).

Almost surely, 2105044385 is an apocalyptic number.

105044385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105044385 is a deficient number, since it is larger than the sum of its proper divisors (66557535).

105044385 is a wasteful number, since it uses less digits than its factorization.

105044385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 105044385 is about 10249.1163033698. The cubic root of 105044385 is about 471.8358632220.

Adding to 105044385 its reverse (583440501), we get a palindrome (688484886).

The spelling of 105044385 in words is "one hundred five million, forty-four thousand, three hundred eighty-five".

Divisors: 1 3 5 15 83 139 249 415 417 607 695 1245 1821 2085 3035 9105 11537 34611 50381 57685 84373 151143 173055 251905 253119 421865 755715 1265595 7002959 21008877 35014795 105044385