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8100061 = 19426319
BaseRepresentation
bin11110111001100011011101
3120020112012021
4132321203131
54033200221
6445340141
7125564224
oct36714335
916215167
108100061
114632772
122867651
1318a7b48
14110bcbb
15aa0041
hex7b98dd

8100061 has 4 divisors (see below), whose sum is σ = 8526400. Its totient is φ = 7673724.

The previous prime is 8099999. The next prime is 8100073. The reversal of 8100061 is 1600018.

8100061 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8100061 - 29 = 8099549 is a prime.

It is a super-2 number, since 2×81000612 = 131221976407442, 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 (8100091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213141 + ... + 213178.

It is an arithmetic number, because the mean of its divisors is an integer number (2131600).

Almost surely, 28100061 is an apocalyptic number.

It is an amenable number.

8100061 is a deficient number, since it is larger than the sum of its proper divisors (426339).

8100061 is a wasteful number, since it uses less digits than its factorization.

8100061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426338.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 8100061 is about 2846.0606107390. The cubic root of 8100061 is about 200.8303891642.

Adding to 8100061 its reverse (1600018), we get a palindrome (9700079).

The spelling of 8100061 in words is "eight million, one hundred thousand, sixty-one".

Divisors: 1 19 426319 8100061