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554819139 = 3472294273
BaseRepresentation
bin100001000100011…
…101111001000011
31102122222201210000
4201010131321003
52114013203024
6131015411043
716514612340
oct4104357103
91378881700
10554819139
112651a9916
12135983a83
138ac39b64
14539857c7
1533a95cc9
hex2111de43

554819139 has 40 divisors (see below), whose sum is σ = 951563360. Its totient is φ = 315581184.

The previous prime is 554819137. The next prime is 554819143. The reversal of 554819139 is 931918455.

554819139 is a `hidden beast` number, since 55 + 481 + 91 + 39 = 666.

It is not a de Polignac number, because 554819139 - 21 = 554819137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 554819094 and 554819103.

It is not an unprimeable number, because it can be changed into a prime (554819137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 127707 + ... + 131979.

It is an arithmetic number, because the mean of its divisors is an integer number (23789084).

Almost surely, 2554819139 is an apocalyptic number.

554819139 is a deficient number, since it is larger than the sum of its proper divisors (396744221).

554819139 is a wasteful number, since it uses less digits than its factorization.

554819139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4521 (or 4512 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 554819139 is about 23554.5991050580. The cubic root of 554819139 is about 821.7072989510.

It can be divided in two parts, 55481 and 9139, that added together give a triangular number (64620 = T359).

The spelling of 554819139 in words is "five hundred fifty-four million, eight hundred nineteen thousand, one hundred thirty-nine".

Divisors: 1 3 7 9 21 27 63 81 189 229 567 687 1603 2061 4273 4809 6183 12819 14427 18549 29911 38457 43281 89733 115371 129843 269199 346113 807597 978517 2422791 2935551 6849619 8806653 20548857 26419959 61646571 79259877 184939713 554819139