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54130503 = 3711322811
BaseRepresentation
bin1100111001111…
…1011101000111
310202212010002110
43032133131013
5102324134003
65212112103
71225046610
oct316373507
9122763073
1054130503
1128612059
1216165633
13b2a34ab
147290c07
154b43a03
hex339f747

54130503 has 16 divisors (see below), whose sum is σ = 83218176. Its totient is φ = 30656640.

The previous prime is 54130493. The next prime is 54130513. The reversal of 54130503 is 30503145.

It is an interprime number because it is at equal distance from previous prime (54130493) and next prime (54130513).

It is not a de Polignac number, because 54130503 - 217 = 53999431 is a prime.

It is a super-2 number, since 2×541305032 = 5860222710066018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 54130503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54130513) 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 15 ways as a sum of consecutive naturals, for example, 9033 + ... + 13778.

It is an arithmetic number, because the mean of its divisors is an integer number (5201136).

Almost surely, 254130503 is an apocalyptic number.

54130503 is a deficient number, since it is larger than the sum of its proper divisors (29087673).

54130503 is a wasteful number, since it uses less digits than its factorization.

54130503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22934.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 54130503 is about 7357.3434743799. The cubic root of 54130503 is about 378.2805579296.

Adding to 54130503 its reverse (30503145), we get a palindrome (84633648).

The spelling of 54130503 in words is "fifty-four million, one hundred thirty thousand, five hundred three".

Divisors: 1 3 7 21 113 339 791 2373 22811 68433 159677 479031 2577643 7732929 18043501 54130503