Search a number
-
+
47798872 = 23113672
BaseRepresentation
bin1011011001010…
…1101001011000
310022221102201121
42312111221120
544214030442
64424255024
71120166212
oct266255130
9108842647
1047798872
1124a88000
1214011474
139b97574
1464c35b2
1542e2967
hex2d95a58

47798872 has 48 divisors (see below), whose sum is σ = 100071720. Its totient is φ = 21402480.

The previous prime is 47798837. The next prime is 47798911. The reversal of 47798872 is 27889774.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

47798872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 713383 + ... + 713449.

Almost surely, 247798872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47798872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50035860).

47798872 is an abundant number, since it is smaller than the sum of its proper divisors (52272848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47798872 is an equidigital number, since it uses as much as digits as its factorization.

47798872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 80 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 52.

The square root of 47798872 is about 6913.6728299797. The cubic root of 47798872 is about 362.9158053891.

The spelling of 47798872 in words is "forty-seven million, seven hundred ninety-eight thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 11 22 44 67 88 121 134 242 268 484 536 737 968 1331 1474 2662 2948 4489 5324 5896 8107 8978 10648 16214 17956 32428 35912 49379 64856 89177 98758 178354 197516 356708 395032 543169 713416 1086338 2172676 4345352 5974859 11949718 23899436 47798872