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42054015140 = 2252102700757
BaseRepresentation
bin100111001010100111…
…010101100010100100
311000112211001022120022
4213022213111202210
51142111311441030
631152551254312
73016065142064
oct471247254244
9130484038508
1042054015140
1116920439015
12819797a398
133c7278c737
14206d2c73a4
151161eb8de5
hex9ca9d58a4

42054015140 has 12 divisors (see below), whose sum is σ = 88313431836. Its totient is φ = 16821606048.

The previous prime is 42054015139. The next prime is 42054015169. The reversal of 42054015140 is 4151045024.

It can be written as a sum of positive squares in 2 ways, for example, as 28674003556 + 13380011584 = 169334^2 + 115672^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1051350359 + ... + 1051350398.

It is an arithmetic number, because the mean of its divisors is an integer number (7359452653).

Almost surely, 242054015140 is an apocalyptic number.

It is an amenable number.

42054015140 is an abundant number, since it is smaller than the sum of its proper divisors (46259416696).

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

42054015140 is a wasteful number, since it uses less digits than its factorization.

42054015140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102700766 (or 2102700764 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The spelling of 42054015140 in words is "forty-two billion, fifty-four million, fifteen thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 2102700757 4205401514 8410803028 10513503785 21027007570 42054015140