Search a number
-
+
105790621 = 4323310559
BaseRepresentation
bin1100100111000…
…11110010011101
321101001201110011
412103203302131
5204040244441
614255243221
72423130316
oct623436235
9241051404
10105790621
1154797072
122b519511
1318bc0401
141009b60d
15944a581
hex64e3c9d

105790621 has 8 divisors (see below), whose sum is σ = 108725760. Its totient is φ = 102877152.

The previous prime is 105790591. The next prime is 105790627. The reversal of 105790621 is 126097501.

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

It is a cyclic number.

It is not a de Polignac number, because 105790621 - 219 = 105266333 is a prime.

It is a super-2 number, since 2×1057906212 = 22383310983131282, 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 (105790627) 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, 4740 + ... + 15298.

It is an arithmetic number, because the mean of its divisors is an integer number (13590720).

Almost surely, 2105790621 is an apocalyptic number.

It is an amenable number.

105790621 is a deficient number, since it is larger than the sum of its proper divisors (2935139).

105790621 is a wasteful number, since it uses less digits than its factorization.

105790621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10835.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 105790621 is about 10285.4567715780. The cubic root of 105790621 is about 472.9505361819.

The spelling of 105790621 in words is "one hundred five million, seven hundred ninety thousand, six hundred twenty-one".

Divisors: 1 43 233 10019 10559 454037 2460247 105790621