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45044243140 = 22513533268813
BaseRepresentation
bin101001111100110110…
…001001101011000100
311022021012200122020111
4221330312021223010
51214222311240030
632405410242404
73153144515011
oct517466115304
9138235618214
1045044243140
1118115334626
128891286404
13432b132110
1422744a8708
15128977c62a
hexa7cd89ac4

45044243140 has 48 divisors (see below), whose sum is σ = 103791382128. Its totient is φ = 16317909504.

The previous prime is 45044243081. The next prime is 45044243143. The reversal of 45044243140 is 4134244054.

45044243140 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 8 ways, for example, as 1135555204 + 43908687936 = 33698^2 + 209544^2 .

It is not an unprimeable number, because it can be changed into a prime (45044243143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1620627 + ... + 1648186.

It is an arithmetic number, because the mean of its divisors is an integer number (2162320461).

Almost surely, 245044243140 is an apocalyptic number.

It is an amenable number.

45044243140 is an abundant number, since it is smaller than the sum of its proper divisors (58747138988).

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

45044243140 is a wasteful number, since it uses less digits than its factorization.

45044243140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3268888 (or 3268886 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 45044243140 its reverse (4134244054), we get a palindrome (49178487194).

The spelling of 45044243140 in words is "forty-five billion, forty-four million, two hundred forty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 53 65 106 130 212 260 265 530 689 1060 1378 2756 3445 6890 13780 3268813 6537626 13075252 16344065 32688130 42494569 65376260 84989138 169978276 173247089 212472845 346494178 424945690 692988356 849891380 866235445 1732470890 2252212157 3464941780 4504424314 9008848628 11261060785 22522121570 45044243140