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964909969 = 310632
BaseRepresentation
bin111001100000110…
…101101110010001
32111020122111122021
4321200311232101
53434004104334
6235425211441
732624412412
oct7140655621
92436574567
10964909969
11455737161
1222b190b81
13124ba245a
1492215809
1559a9e3b4
hex39835b91

964909969 has 3 divisors (see below), whose sum is σ = 964941033. Its totient is φ = 964878906.

The previous prime is 964909931. The next prime is 964909991. The reversal of 964909969 is 969909469.

The square root of 964909969 is 31063.

It is a perfect power (a square), and thus also a powerful number.

964909969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 969909469 = 6311537099.

It is not a de Polignac number, because 964909969 - 217 = 964778897 is a prime.

It is a super-3 number, since 3×9649099693 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (964909369) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 15532 + ... + 46594.

It is an arithmetic number, because the mean of its divisors is an integer number (321647011).

Almost surely, 2964909969 is an apocalyptic number.

964909969 is the 31063-rd square number.

964909969 is the 15532-nd centered octagonal number.

It is an amenable number.

964909969 is a deficient number, since it is larger than the sum of its proper divisors (31064).

964909969 is an frugal number, since it uses more digits than its factorization.

964909969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62126 (or 31063 counting only the distinct ones).

The product of its (nonzero) digits is 8503056, while the sum is 61.

The cubic root of 964909969 is about 988.1637796234.

The spelling of 964909969 in words is "nine hundred sixty-four million, nine hundred nine thousand, nine hundred sixty-nine".

Divisors: 1 31063 964909969