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940861441 = 1372373957
BaseRepresentation
bin111000000101000…
…110100000000001
32102120101201021001
4320011012200001
53411330031231
6233205532001
732213122162
oct7005064001
92376351231
10940861441
11443101143
12223114001
1311cc02360
148cd55769
15578edb61
hex38146801

940861441 has 4 divisors (see below), whose sum is σ = 1013235412. Its totient is φ = 868487472.

The previous prime is 940861423. The next prime is 940861469. The reversal of 940861441 is 144168049.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144168049 = 120072.

It can be written as a sum of positive squares in 2 ways, for example, as 75325041 + 865536400 = 8679^2 + 29420^2 .

It is a cyclic number.

It is not a de Polignac number, because 940861441 - 223 = 932472833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 940861441.

It is not an unprimeable number, because it can be changed into a prime (940861241) 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, 36186966 + ... + 36186991.

It is an arithmetic number, because the mean of its divisors is an integer number (253308853).

Almost surely, 2940861441 is an apocalyptic number.

It is an amenable number.

940861441 is a deficient number, since it is larger than the sum of its proper divisors (72373971).

940861441 is a wasteful number, since it uses less digits than its factorization.

940861441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72373970.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 940861441 is about 30673.4647700582. The cubic root of 940861441 is about 979.8852569393.

The spelling of 940861441 in words is "nine hundred forty million, eight hundred sixty-one thousand, four hundred forty-one".

Divisors: 1 13 72373957 940861441