Search a number
-
+
47000038 = 223500019
BaseRepresentation
bin1011001101001…
…0100111100110
310021102211221011
42303102213212
544013000123
64355212434
71110331231
oct263224746
9107384834
1047000038
1124591908
12138a711a
139977a97
146356418
1541d5e0d
hex2cd29e6

47000038 has 4 divisors (see below), whose sum is σ = 70500060. Its totient is φ = 23500018.

The previous prime is 47000011. The next prime is 47000059. The reversal of 47000038 is 83000074.

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

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 = 46999982 and 47000018.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11750008 + ... + 11750011.

It is an arithmetic number, because the mean of its divisors is an integer number (17625015).

Almost surely, 247000038 is an apocalyptic number.

47000038 is a deficient number, since it is larger than the sum of its proper divisors (23500022).

47000038 is a wasteful number, since it uses less digits than its factorization.

47000038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23500021.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 47000038 is about 6855.6573718353. The cubic root of 47000038 is about 360.8827052730.

The spelling of 47000038 in words is "forty-seven million, thirty-eight", and thus it is an aban number and an uban number.

Divisors: 1 2 23500019 47000038