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969908648 = 23121238581
BaseRepresentation
bin111001110011111…
…010000110101000
32111121001110112112
4321303322012220
53441244034043
6240124301452
733015042002
oct7163720650
92447043475
10969908648
114585407a5
122309a1888
13125c32757
1492b57372
155a23a518
hex39cfa1a8

969908648 has 8 divisors (see below), whose sum is σ = 1818578730. Its totient is φ = 484954320.

The previous prime is 969908647. The next prime is 969908651. The reversal of 969908648 is 846809969.

It can be written as a sum of positive squares in only one way, i.e., 951228964 + 18679684 = 30842^2 + 4322^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (969908647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60619283 + ... + 60619298.

Almost surely, 2969908648 is an apocalyptic number.

It is an amenable number.

969908648 is a deficient number, since it is larger than the sum of its proper divisors (848670082).

969908648 is a wasteful number, since it uses less digits than its factorization.

969908648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121238587 (or 121238583 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 59.

The square root of 969908648 is about 31143.3564022891. The cubic root of 969908648 is about 989.8672229507.

The spelling of 969908648 in words is "nine hundred sixty-nine million, nine hundred eight thousand, six hundred forty-eight".

Divisors: 1 2 4 8 121238581 242477162 484954324 969908648