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105050621 = 1359136963
BaseRepresentation
bin1100100001011…
…11000111111101
321022200010100202
412100233013331
5203343104441
614231333245
72413626014
oct620570775
9238603322
10105050621
11543310a5
122b221225
13189c1640
14dd47a7b
15935119b
hex642f1fd

105050621 has 8 divisors (see below), whose sum is σ = 115049760. Its totient is φ = 95325552.

The previous prime is 105050609. The next prime is 105050623. The reversal of 105050621 is 126050501.

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-105050621 is a prime.

It is a super-2 number, since 2×1050506212 = 22071265944971282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105050593 and 105050602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105050623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67715 + ... + 69248.

It is an arithmetic number, because the mean of its divisors is an integer number (14381220).

Almost surely, 2105050621 is an apocalyptic number.

It is an amenable number.

105050621 is a deficient number, since it is larger than the sum of its proper divisors (9999139).

105050621 is a wasteful number, since it uses less digits than its factorization.

105050621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137035.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 105050621 is about 10249.4205202050. The cubic root of 105050621 is about 471.8451999426.

The spelling of 105050621 in words is "one hundred five million, fifty thousand, six hundred twenty-one".

Divisors: 1 13 59 767 136963 1780519 8080817 105050621