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444506874 = 23710583497
BaseRepresentation
bin11010011111101…
…010001011111010
31010222102021210120
4122133222023322
51402243204444
6112035154110
714005150260
oct3237521372
91128367716
10444506874
11208a04659
12104a45936
1371125626
144306c430
1529055b19
hex1a7ea2fa

444506874 has 16 divisors (see below), whose sum is σ = 1016015808. Its totient is φ = 127001952.

The previous prime is 444506873. The next prime is 444506879. The reversal of 444506874 is 478605444.

It is a super-2 number, since 2×4445068742 = 395172722066503752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 10583497 = 444506874 / (4 + 4 + 4 + 5 + 0 + 6 + 8 + 7 + 4).

It is not an unprimeable number, because it can be changed into a prime (444506873) 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, 5291707 + ... + 5291790.

It is an arithmetic number, because the mean of its divisors is an integer number (63500988).

Almost surely, 2444506874 is an apocalyptic number.

444506874 is an abundant number, since it is smaller than the sum of its proper divisors (571508934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444506874 is a wasteful number, since it uses less digits than its factorization.

444506874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10583509.

The product of its (nonzero) digits is 430080, while the sum is 42.

The square root of 444506874 is about 21083.3316627140. The cubic root of 444506874 is about 763.1785586967.

The spelling of 444506874 in words is "four hundred forty-four million, five hundred six thousand, eight hundred seventy-four".

Divisors: 1 2 3 6 7 14 21 42 10583497 21166994 31750491 63500982 74084479 148168958 222253437 444506874