Search a number
-
+
54430974388 = 2272444162533
BaseRepresentation
bin110010101100010101…
…101100000110110100
312012111101110222210101
4302230111230012310
51342433312140023
641001044403444
73634564435300
oct625425540664
9165441428711
1054430974388
11210a195875a
12a6709a6584
135195a5936b
1428c4dccd00
15163889b1ad
hexcac56c1b4

54430974388 has 36 divisors (see below), whose sum is σ = 110832635172. Its totient is φ = 23321934720.

The previous prime is 54430974371. The next prime is 54430974421. The reversal of 54430974388 is 88347903445.

It can be written as a sum of positive squares in 2 ways, for example, as 31578000804 + 22852973584 = 177702^2 + 151172^2 .

It is a super-2 number, since 2×544309743882 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 839170 + ... + 901702.

Almost surely, 254430974388 is an apocalyptic number.

It is an amenable number.

54430974388 is an abundant number, since it is smaller than the sum of its proper divisors (56401660784).

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

54430974388 is a wasteful number, since it uses less digits than its factorization.

54430974388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66992 (or 66983 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 54430974388 in words is "fifty-four billion, four hundred thirty million, nine hundred seventy-four thousand, three hundred eighty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 4441 8882 17764 31087 62174 62533 124348 125066 217609 250132 435218 437731 870436 875462 1750924 3064117 6128234 12256468 277709053 555418106 1110836212 1943963371 3887926742 7775853484 13607743597 27215487194 54430974388