Search a number
-
+
8734986949 = 134571470289
BaseRepresentation
bin10000010001010010…
…10101001011000101
3211112202102022110011
420020221111023011
5120342124040244
64002433030221
7426314110153
oct101051251305
924482368404
108734986949
113782743a87
1218393b5371
13a928b2340
145cc14c3d3
15361cce434
hex208a552c5

8734986949 has 8 divisors (see below), whose sum is σ = 9427499480. Its totient is φ = 8045415936.

The previous prime is 8734986947. The next prime is 8734986977. The reversal of 8734986949 is 9496894378.

It can be written as a sum of positive squares in 4 ways, for example, as 3692992900 + 5041994049 = 60770^2 + 71007^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8734986949 - 21 = 8734986947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8734986941) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 729204 + ... + 741085.

It is an arithmetic number, because the mean of its divisors is an integer number (1178437435).

Almost surely, 28734986949 is an apocalyptic number.

It is an amenable number.

8734986949 is a deficient number, since it is larger than the sum of its proper divisors (692512531).

8734986949 is a wasteful number, since it uses less digits than its factorization.

8734986949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470759.

The product of its digits is 94058496, while the sum is 67.

The square root of 8734986949 is about 93461.1520847031. The cubic root of 8734986949 is about 2059.4634406288.

The spelling of 8734986949 in words is "eight billion, seven hundred thirty-four million, nine hundred eighty-six thousand, nine hundred forty-nine".

Divisors: 1 13 457 5941 1470289 19113757 671922073 8734986949