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7143240140 = 225691516877
BaseRepresentation
bin1101010011100010…
…10011000111001100
3200102211021012022122
412221301103013030
5104112132141030
63140452232112
7342005353001
oct65161230714
920384235278
107143240140
11303619a053
12147430b638
1389aba901a
144ba9a58a8
152bc1b08e5
hex1a9c531cc

7143240140 has 24 divisors (see below), whose sum is σ = 15022542192. Its totient is φ = 2853155520.

The previous prime is 7143240107. The next prime is 7143240173. The reversal of 7143240140 is 410423417.

It is an interprime number because it is at equal distance from previous prime (7143240107) and next prime (7143240173).

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, 244619 + ... + 272258.

It is an arithmetic number, because the mean of its divisors is an integer number (625939258).

Almost surely, 27143240140 is an apocalyptic number.

It is an amenable number.

7143240140 is an abundant number, since it is smaller than the sum of its proper divisors (7879302052).

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

7143240140 is a wasteful number, since it uses less digits than its factorization.

7143240140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517577 (or 517575 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 7143240140 is about 84517.6912841329. The cubic root of 7143240140 is about 1925.8912061625.

Adding to 7143240140 its reverse (410423417), we get a palindrome (7553663557).

The spelling of 7143240140 in words is "seven billion, one hundred forty-three million, two hundred forty thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 691 1382 2764 3455 6910 13820 516877 1033754 2067508 2584385 5168770 10337540 357162007 714324014 1428648028 1785810035 3571620070 7143240140