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969488641 = 1188135331
BaseRepresentation
bin111001110010010…
…011100100000001
32111120021010101201
4321302103210001
53441142114031
6240111301201
733011342332
oct7162234401
92446233351
10969488641
11458284190
1223081a801
13125b16524
1492a88289
155a1a5d61
hex39c93901

969488641 has 4 divisors (see below), whose sum is σ = 1057623984. Its totient is φ = 881353300.

The previous prime is 969488609. The next prime is 969488651. The reversal of 969488641 is 146884969.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 969488641 - 25 = 969488609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (969488651) 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 3 ways as a sum of consecutive naturals, for example, 44067655 + ... + 44067676.

It is an arithmetic number, because the mean of its divisors is an integer number (264405996).

Almost surely, 2969488641 is an apocalyptic number.

It is an amenable number.

969488641 is a deficient number, since it is larger than the sum of its proper divisors (88135343).

969488641 is a wasteful number, since it uses less digits than its factorization.

969488641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88135342.

The product of its digits is 2985984, while the sum is 55.

The square root of 969488641 is about 31136.6125485737. The cubic root of 969488641 is about 989.7243190494.

The spelling of 969488641 in words is "nine hundred sixty-nine million, four hundred eighty-eight thousand, six hundred forty-one".

Divisors: 1 11 88135331 969488641