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1941244145 = 5459784457
BaseRepresentation
bin111001110110101…
…0000100011110001
312000021210102100022
41303231100203301
512433424303040
6520343333225
766051205631
oct16355204361
95007712308
101941244145
11906866505
12462151215
1324c244799
14145b626c1
15b56586b5
hex73b508f1

1941244145 has 8 divisors (see below), whose sum is σ = 2330027304. Its totient is φ = 1552639104.

The previous prime is 1941244069. The next prime is 1941244147. The reversal of 1941244145 is 5414421491.

It can be written as a sum of positive squares in 4 ways, for example, as 37405456 + 1903838689 = 6116^2 + 43633^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1941244145 - 228 = 1672808689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1941244147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19244 + ... + 65213.

It is an arithmetic number, because the mean of its divisors is an integer number (291253413).

Almost surely, 21941244145 is an apocalyptic number.

It is an amenable number.

1941244145 is a deficient number, since it is larger than the sum of its proper divisors (388783159).

1941244145 is an equidigital number, since it uses as much as digits as its factorization.

1941244145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89059.

The product of its digits is 23040, while the sum is 35.

The square root of 1941244145 is about 44059.5522560091. The cubic root of 1941244145 is about 1247.4602608750.

The spelling of 1941244145 in words is "one billion, nine hundred forty-one million, two hundred forty-four thousand, one hundred forty-five".

Divisors: 1 5 4597 22985 84457 422285 388248829 1941244145