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514020143 = 7313176781
BaseRepresentation
bin11110101000110…
…101001100101111
31022211012221002002
4132220311030233
52023042121033
6123001122515
715511046000
oct3650651457
91284187062
10514020143
11244172a3a
1212418943b
1382653740
144c3a51a7
15301d73e8
hex1ea3532f

514020143 has 32 divisors (see below), whose sum is σ = 683625600. Its totient is φ = 382717440.

The previous prime is 514020137. The next prime is 514020173. The reversal of 514020143 is 341020415.

It is not a de Polignac number, because 514020143 - 24 = 514020127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (514020103) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 72413 + ... + 79193.

It is an arithmetic number, because the mean of its divisors is an integer number (21363300).

Almost surely, 2514020143 is an apocalyptic number.

514020143 is a deficient number, since it is larger than the sum of its proper divisors (169605457).

514020143 is a wasteful number, since it uses less digits than its factorization.

514020143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6832 (or 6818 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 514020143 is about 22672.0123279783. The cubic root of 514020143 is about 801.0507770427.

Adding to 514020143 its reverse (341020415), we get a palindrome (855040558).

The spelling of 514020143 in words is "five hundred fourteen million, twenty thousand, one hundred forty-three".

Divisors: 1 7 13 17 49 91 119 221 343 637 833 1547 4459 5831 6781 10829 47467 75803 88153 115277 332269 617071 806939 1498601 2325883 4319497 5648573 10490207 30236479 39540011 73431449 514020143