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125130143 = 19232811019
BaseRepresentation
bin1110111010101…
…01010110011111
322201110021021202
413131111112133
5224013131033
620225550115
73046405625
oct735252637
9281407252
10125130143
11646a6146
1235aa533b
131cc02008
1412893515
15aeba8e8
hex775559f

125130143 has 16 divisors (see below), whose sum is σ = 138067200. Its totient is φ = 112875840.

The previous prime is 125130139. The next prime is 125130169. The reversal of 125130143 is 341031521.

It is a cyclic number.

It is not a de Polignac number, because 125130143 - 22 = 125130139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125130113) 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, 122288 + ... + 123306.

It is an arithmetic number, because the mean of its divisors is an integer number (8629200).

Almost surely, 2125130143 is an apocalyptic number.

125130143 is a deficient number, since it is larger than the sum of its proper divisors (12937057).

125130143 is a wasteful number, since it uses less digits than its factorization.

125130143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 125130143 is about 11186.1585452737. The cubic root of 125130143 is about 500.1734638137.

Adding to 125130143 its reverse (341031521), we get a palindrome (466161664).

The spelling of 125130143 in words is "one hundred twenty-five million, one hundred thirty thousand, one hundred forty-three".

Divisors: 1 19 23 281 437 1019 5339 6463 19361 23437 122797 286339 445303 5440441 6585797 125130143