Search a number
-
+
47042342312 = 237840041827
BaseRepresentation
bin101011110011111100…
…010010110110101000
311111102110110121000112
4223303330102312220
51232320314423222
633335544353452
73253516212020
oct536374226650
9144373417015
1047042342312
1118a501a3059
12914a475888
134589092214
1423c39caa80
151354db6be2
hexaf3f12da8

47042342312 has 16 divisors (see below), whose sum is σ = 100805019360. Its totient is φ = 20161003824.

The previous prime is 47042342311. The next prime is 47042342429. The reversal of 47042342312 is 21324324074.

It is a super-3 number, since 3×470423423123 (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (47042342311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420020858 + ... + 420020969.

It is an arithmetic number, because the mean of its divisors is an integer number (6300313710).

Almost surely, 247042342312 is an apocalyptic number.

It is an amenable number.

47042342312 is an abundant number, since it is smaller than the sum of its proper divisors (53762677048).

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

47042342312 is a wasteful number, since it uses less digits than its factorization.

47042342312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840041840 (or 840041836 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 32.

Adding to 47042342312 its reverse (21324324074), we get a palindrome (68366666386).

The spelling of 47042342312 in words is "forty-seven billion, forty-two million, three hundred forty-two thousand, three hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 840041827 1680083654 3360167308 5880292789 6720334616 11760585578 23521171156 47042342312