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61201444 = 2215300361
BaseRepresentation
bin1110100101110…
…1110000100100
311021011100121011
43221131300210
5111131421234
610023432004
71342126603
oct351356044
9137140534
1061201444
1131601607
12185b5604
13c8aaa95
1481b1a3a
15558db64
hex3a5dc24

61201444 has 6 divisors (see below), whose sum is σ = 107102534. Its totient is φ = 30600720.

The previous prime is 61201423. The next prime is 61201453. The reversal of 61201444 is 44410216.

61201444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 54760000 + 6441444 = 7400^2 + 2538^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7650177 + ... + 7650184.

Almost surely, 261201444 is an apocalyptic number.

It is an amenable number.

61201444 is a deficient number, since it is larger than the sum of its proper divisors (45901090).

61201444 is a wasteful number, since it uses less digits than its factorization.

61201444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15300365 (or 15300363 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 61201444 is about 7823.1351771524. The cubic root of 61201444 is about 394.0825666328.

The spelling of 61201444 in words is "sixty-one million, two hundred one thousand, four hundred forty-four".

Divisors: 1 2 4 15300361 30600722 61201444