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8001061 = 71112691
BaseRepresentation
bin11110100001011000100101
3120001111101121
4132201120211
54022013221
6443253541
7125002465
oct36413045
916044347
108001061
114575352
12281a2b1
131871a73
1410c3ba5
15a80a41
hex7a1625

8001061 has 4 divisors (see below), whose sum is σ = 8113824. Its totient is φ = 7888300.

The previous prime is 8001047. The next prime is 8001107. The reversal of 8001061 is 1601008.

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 8001061 - 25 = 8001029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8001661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56275 + ... + 56416.

It is an arithmetic number, because the mean of its divisors is an integer number (2028456).

Almost surely, 28001061 is an apocalyptic number.

It is an amenable number.

8001061 is a deficient number, since it is larger than the sum of its proper divisors (112763).

8001061 is a wasteful number, since it uses less digits than its factorization.

8001061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112762.

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

The square root of 8001061 is about 2828.6146786015. The cubic root of 8001061 is about 200.0088412758.

Adding to 8001061 its reverse (1601008), we get a palindrome (9602069).

The spelling of 8001061 in words is "eight million, one thousand, sixty-one".

Divisors: 1 71 112691 8001061