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130211142440 = 2357344592857
BaseRepresentation
bin111100101000100110…
…0000101101100101000
3110110002122020101121012
41321101030011230220
54113133023024230
6135452420403052
712256516306661
oct1712114055450
9413078211535
10130211142440
1150249882615
122129b546488
13c3818606a2
14643354c368
1535c166e395
hex1e51305b28

130211142440 has 32 divisors (see below), whose sum is σ = 296988434280. Its totient is φ = 51370970112.

The previous prime is 130211142431. The next prime is 130211142491. The reversal of 130211142440 is 44241112031.

It can be written as a sum of positive squares in 4 ways, for example, as 128411855716 + 1799286724 = 358346^2 + 42418^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22293509 + ... + 22299348.

Almost surely, 2130211142440 is an apocalyptic number.

130211142440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130211142440 is an abundant number, since it is smaller than the sum of its proper divisors (166777291840).

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

130211142440 is a wasteful number, since it uses less digits than its factorization.

130211142440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44592941 (or 44592937 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 130211142440 its reverse (44241112031), we get a palindrome (174452254471).

The spelling of 130211142440 in words is "one hundred thirty billion, two hundred eleven million, one hundred forty-two thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 73 146 292 365 584 730 1460 2920 44592857 89185714 178371428 222964285 356742856 445928570 891857140 1783714280 3255278561 6510557122 13021114244 16276392805 26042228488 32552785610 65105571220 130211142440