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27700042 = 213850021
BaseRepresentation
bin110100110101…
…0101101001010
31221010022022111
41221222231022
524042400132
62425412534
7454306066
oct151525512
957108274
1027700042
11146aa4a7
12933a14a
13597b176
143970aa6
152672647
hex1a6ab4a

27700042 has 4 divisors (see below), whose sum is σ = 41550066. Its totient is φ = 13850020.

The previous prime is 27700037. The next prime is 27700067. The reversal of 27700042 is 24000772.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 25512601 + 2187441 = 5051^2 + 1479^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 27699986 and 27700022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6925009 + ... + 6925012.

Almost surely, 227700042 is an apocalyptic number.

27700042 is a deficient number, since it is larger than the sum of its proper divisors (13850024).

27700042 is a wasteful number, since it uses less digits than its factorization.

27700042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13850023.

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 27700042 is about 5263.0829368346. The cubic root of 27700042 is about 302.5706576289.

The spelling of 27700042 in words is "twenty-seven million, seven hundred thousand, forty-two".

Divisors: 1 2 13850021 27700042