Search a number
-
+
47138056 = 237841751
BaseRepresentation
bin1011001111010…
…0010100001000
310021200212020221
42303310110020
544031404211
64402155424
71111444510
oct263642410
9107625227
1047138056
1124676579
1213952b74
1399c5854
146390840
154211c71
hex2cf4508

47138056 has 16 divisors (see below), whose sum is σ = 101010240. Its totient is φ = 20202000.

The previous prime is 47138009. The next prime is 47138057. The reversal of 47138056 is 65083174.

It is not an unprimeable number, because it can be changed into a prime (47138057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420820 + ... + 420931.

It is an arithmetic number, because the mean of its divisors is an integer number (6313140).

Almost surely, 247138056 is an apocalyptic number.

It is an amenable number.

47138056 is an abundant number, since it is smaller than the sum of its proper divisors (53872184).

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

47138056 is a wasteful number, since it uses less digits than its factorization.

47138056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841764 (or 841760 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 47138056 is about 6865.7159859697. The cubic root of 47138056 is about 361.2356101914.

It can be divided in two parts, 4713 and 8056, that added together give a square (12769 = 1132).

The spelling of 47138056 in words is "forty-seven million, one hundred thirty-eight thousand, fifty-six".

Divisors: 1 2 4 7 8 14 28 56 841751 1683502 3367004 5892257 6734008 11784514 23569028 47138056