Search a number
-
+
47807268 = 22319307683
BaseRepresentation
bin1011011001011…
…1101100100100
310022221212020120
42312113230210
544214313033
64424401540
71120232535
oct266275444
9108855216
1047807268
1124a93343
12140162b0
139b9b332
1464c668c
1542e51b3
hex2d97b24

47807268 has 48 divisors (see below), whose sum is σ = 117976320. Its totient is φ = 15025824.

The previous prime is 47807267. The next prime is 47807273. The reversal of 47807268 is 86270874.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (47807261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69655 + ... + 70337.

It is an arithmetic number, because the mean of its divisors is an integer number (2457840).

Almost surely, 247807268 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 47807268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58988160).

47807268 is an abundant number, since it is smaller than the sum of its proper divisors (70169052).

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

47807268 is a wasteful number, since it uses less digits than its factorization.

47807268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016 (or 1014 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 47807268 is about 6914.2800059008. The cubic root of 47807268 is about 362.9370531898.

The spelling of 47807268 in words is "forty-seven million, eight hundred seven thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 307 614 683 921 1228 1366 1842 2049 2732 3684 4098 5833 8196 11666 12977 17499 23332 25954 34998 38931 51908 69996 77862 155724 209681 419362 629043 838724 1258086 2516172 3983939 7967878 11951817 15935756 23903634 47807268