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70801 = 101701
BaseRepresentation
bin10001010010010001
310121010021
4101102101
54231201
61303441
7413263
oct212221
9117107
1070801
1149215
1234b81
13262c3
141bb33
1515ea1
hex11491

70801 has 4 divisors (see below), whose sum is σ = 71604. Its totient is φ = 70000.

The previous prime is 70793. The next prime is 70823. The reversal of 70801 is 10807.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10807 = 101107.

It can be written as a sum of positive squares in 2 ways, for example, as 65025 + 5776 = 255^2 + 76^2 .

It is a cyclic number.

It is not a de Polignac number, because 70801 - 23 = 70793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70841) 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, 250 + ... + 451.

It is an arithmetic number, because the mean of its divisors is an integer number (17901).

270801 is an apocalyptic number.

It is an amenable number.

70801 is a deficient number, since it is larger than the sum of its proper divisors (803).

70801 is a wasteful number, since it uses less digits than its factorization.

70801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 70801 is about 266.0845730214. The cubic root of 70801 is about 41.3694547809.

The spelling of 70801 in words is "seventy thousand, eight hundred one".

Divisors: 1 101 701 70801