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961311941 = 3853249497
BaseRepresentation
bin111001010011000…
…111010011000101
32110222212201001222
4321103013103011
53432043440231
6235220130125
732552005502
oct7123072305
92428781058
10961311941
114536a9987
12229b36945
13124212845
149195a4a9
15595dd27b
hex394c74c5

961311941 has 4 divisors (see below), whose sum is σ = 961565292. Its totient is φ = 961058592.

The previous prime is 961311917. The next prime is 961311947. The reversal of 961311941 is 149113169.

961311941 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.

It can be written as a sum of positive squares in 2 ways, for example, as 934830625 + 26481316 = 30575^2 + 5146^2 .

It is a cyclic number.

It is not a de Polignac number, because 961311941 - 26 = 961311877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961311947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120896 + ... + 128601.

It is an arithmetic number, because the mean of its divisors is an integer number (240391323).

Almost surely, 2961311941 is an apocalyptic number.

It is an amenable number.

961311941 is a deficient number, since it is larger than the sum of its proper divisors (253351).

961311941 is a wasteful number, since it uses less digits than its factorization.

961311941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253350.

The product of its digits is 5832, while the sum is 35.

The square root of 961311941 is about 31005.0308982268. The cubic root of 961311941 is about 986.9340036152.

The spelling of 961311941 in words is "nine hundred sixty-one million, three hundred eleven thousand, nine hundred forty-one".

Divisors: 1 3853 249497 961311941