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47989134 = 2323836961
BaseRepresentation
bin1011011100010…
…0000110001110
310100022002201100
42313010012032
544241123014
64432323530
71121621004
oct267040616
9110262640
1047989134
11250a7a46
12140a35a6
139c3304b
146532a74
15432e009
hex2dc418e

47989134 has 24 divisors (see below), whose sum is σ = 104262912. Its totient is φ = 15952320.

The previous prime is 47989133. The next prime is 47989141. The reversal of 47989134 is 43198974.

It is a self number, because there is not a number n which added to its sum of digits gives 47989134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47989133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3414 + ... + 10374.

It is an arithmetic number, because the mean of its divisors is an integer number (4344288).

Almost surely, 247989134 is an apocalyptic number.

47989134 is an abundant number, since it is smaller than the sum of its proper divisors (56273778).

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

47989134 is a wasteful number, since it uses less digits than its factorization.

47989134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7352 (or 7349 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 47989134 is about 6927.4189998873. The cubic root of 47989134 is about 363.3966931186.

The spelling of 47989134 in words is "forty-seven million, nine hundred eighty-nine thousand, one hundred thirty-four".

Divisors: 1 2 3 6 9 18 383 766 1149 2298 3447 6894 6961 13922 20883 41766 62649 125298 2666063 5332126 7998189 15996378 23994567 47989134