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1047420044 = 2211213915569
BaseRepresentation
bin111110011011100…
…101110010001100
32200222220110011222
4332123211302030
54121114420134
6251533502512
734645631516
oct7633456214
92628813158
101047420044
11498272200
12252941a38
13139001198
149d172bb6
1561e4ba2e
hex3e6e5c8c

1047420044 has 36 divisors (see below), whose sum is σ = 2029393800. Its totient is φ = 472644480.

The previous prime is 1047420043. The next prime is 1047420047. The reversal of 1047420044 is 4400247401.

It is a junction number, because it is equal to n+sod(n) for n = 1047419995 and 1047420022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047420043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59492 + ... + 75060.

It is an arithmetic number, because the mean of its divisors is an integer number (56372050).

Almost surely, 21047420044 is an apocalyptic number.

It is an amenable number.

1047420044 is a deficient number, since it is larger than the sum of its proper divisors (981973756).

1047420044 is a wasteful number, since it uses less digits than its factorization.

1047420044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15734 (or 15721 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 1047420044 is about 32363.8694225521. The cubic root of 1047420044 is about 1015.5632112488.

Adding to 1047420044 its reverse (4400247401), we get a palindrome (5447667445).

The spelling of 1047420044 in words is "one billion, forty-seven million, four hundred twenty thousand, forty-four".

Divisors: 1 2 4 11 22 44 121 139 242 278 484 556 1529 3058 6116 15569 16819 31138 33638 62276 67276 171259 342518 685036 1883849 2164091 3767698 4328182 7535396 8656364 23805001 47610002 95220004 261855011 523710022 1047420044