Search a number
-
+
42977041 = 231868567
BaseRepresentation
bin1010001111110…
…0011100010001
32222212110102021
42203330130101
542000231131
64133051441
71031204332
oct243743421
988773367
1042977041
1122294318
1212486b81
138b99903
1459ca289
153b8de11
hex28fc711

42977041 has 4 divisors (see below), whose sum is σ = 44845632. Its totient is φ = 41108452.

The previous prime is 42977029. The next prime is 42977057. The reversal of 42977041 is 14077924.

42977041 is digitally balanced in base 2, 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 not a de Polignac number, because 42977041 - 25 = 42977009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42976988 and 42977006.

It is not an unprimeable number, because it can be changed into a prime (42977021) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 934261 + ... + 934306.

It is an arithmetic number, because the mean of its divisors is an integer number (11211408).

Almost surely, 242977041 is an apocalyptic number.

It is an amenable number.

42977041 is a deficient number, since it is larger than the sum of its proper divisors (1868591).

42977041 is a wasteful number, since it uses less digits than its factorization.

42977041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868590.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 42977041 is about 6555.6876832259. The cubic root of 42977041 is about 350.2774426001.

The spelling of 42977041 in words is "forty-two million, nine hundred seventy-seven thousand, forty-one".

Divisors: 1 23 1868567 42977041