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54430641 = 328577057
BaseRepresentation
bin1100111110100…
…0101110110001
310210102100210200
43033220232301
5102413240031
65222345413
71230436626
oct317505661
9123370720
1054430641
11287a7601
121628b269
13b379ca5
14732c34d
154ba28e6
hex33e8bb1

54430641 has 12 divisors (see below), whose sum is σ = 78724932. Its totient is φ = 36239616.

The previous prime is 54430613. The next prime is 54430661. The reversal of 54430641 is 14603445.

It can be written as a sum of positive squares in 2 ways, for example, as 53231616 + 1199025 = 7296^2 + 1095^2 .

It is not a de Polignac number, because 54430641 - 25 = 54430609 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54430601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4185 + ... + 11241.

It is an arithmetic number, because the mean of its divisors is an integer number (6560411).

Almost surely, 254430641 is an apocalyptic number.

It is an amenable number.

54430641 is a deficient number, since it is larger than the sum of its proper divisors (24294291).

54430641 is a wasteful number, since it uses less digits than its factorization.

54430641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7920 (or 7917 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 54430641 is about 7377.7124503467. The cubic root of 54430641 is about 378.9784218308.

The spelling of 54430641 in words is "fifty-four million, four hundred thirty thousand, six hundred forty-one".

Divisors: 1 3 9 857 2571 7057 7713 21171 63513 6047849 18143547 54430641