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1030015044 = 223228611529
BaseRepresentation
bin111101011001001…
…100100001000100
32122210011012000100
4331121030201010
54102140440134
6250112444100
734344661212
oct7531144104
92583135010
101030015044
11489464603
12248b49630
13135518c76
149ab21cb2
156065e999
hex3d64c844

1030015044 has 18 divisors (see below), whose sum is σ = 2603649230. Its totient is φ = 343338336.

The previous prime is 1030015043. The next prime is 1030015081. The reversal of 1030015044 is 4405100301.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 713530944 + 316484100 = 26712^2 + 17790^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1030015043) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 14305729 + ... + 14305800.

Almost surely, 21030015044 is an apocalyptic number.

It is an amenable number.

1030015044 is an abundant number, since it is smaller than the sum of its proper divisors (1573634186).

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

1030015044 is a wasteful number, since it uses less digits than its factorization.

1030015044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28611539 (or 28611534 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1030015044 is about 32093.8474477586. The cubic root of 1030015044 is about 1009.9065508416.

Adding to 1030015044 its reverse (4405100301), we get a palindrome (5435115345).

The spelling of 1030015044 in words is "one billion, thirty million, fifteen thousand, forty-four".

Divisors: 1 2 3 4 6 9 12 18 36 28611529 57223058 85834587 114446116 171669174 257503761 343338348 515007522 1030015044