Search a number
-
+
42732807 = 3131095713
BaseRepresentation
bin1010001100000…
…0110100000111
32222102001101120
42203000310013
541414422212
64123525023
71026136305
oct243006407
988361346
1042732807
1122137877
1212389773
138b126b0
145965275
153b4188c
hex28c0d07

42732807 has 8 divisors (see below), whose sum is σ = 61359984. Its totient is φ = 26297088.

The previous prime is 42732793. The next prime is 42732829. The reversal of 42732807 is 70823724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42732807 - 210 = 42731783 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42732857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547818 + ... + 547895.

It is an arithmetic number, because the mean of its divisors is an integer number (7669998).

Almost surely, 242732807 is an apocalyptic number.

42732807 is a deficient number, since it is larger than the sum of its proper divisors (18627177).

42732807 is a wasteful number, since it uses less digits than its factorization.

42732807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095729.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 42732807 is about 6537.0335015204. The cubic root of 42732807 is about 349.6126517483.

The spelling of 42732807 in words is "forty-two million, seven hundred thirty-two thousand, eight hundred seven".

Divisors: 1 3 13 39 1095713 3287139 14244269 42732807