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54431302532 = 22109124842437
BaseRepresentation
bin110010101100010110…
…111100001110000100
312012111102002122220212
4302230112330032010
51342433403140112
641001055414552
73634600303055
oct625426741604
9165442078825
1054431302532
11210a2062252
12a670b24458
135195b42829
1428c507672c
151638913522
hexcac5bc384

54431302532 has 12 divisors (see below), whose sum is σ = 96128677260. Its totient is φ = 26965966176.

The previous prime is 54431302483. The next prime is 54431302537. The reversal of 54431302532 is 23520313445.

It can be written as a sum of positive squares in 2 ways, for example, as 36318449476 + 18112853056 = 190574^2 + 134584^2 .

It is a super-2 number, since 2×544313025322 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54431302537) 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 3 ways as a sum of consecutive naturals, for example, 62420783 + ... + 62421654.

It is an arithmetic number, because the mean of its divisors is an integer number (8010723105).

Almost surely, 254431302532 is an apocalyptic number.

It is an amenable number.

54431302532 is a deficient number, since it is larger than the sum of its proper divisors (41697374728).

54431302532 is a wasteful number, since it uses less digits than its factorization.

54431302532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124842550 (or 124842548 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 54431302532 its reverse (23520313445), we get a palindrome (77951615977).

The spelling of 54431302532 in words is "fifty-four billion, four hundred thirty-one million, three hundred two thousand, five hundred thirty-two".

Divisors: 1 2 4 109 218 436 124842437 249684874 499369748 13607825633 27215651266 54431302532