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54430405 = 511396337
BaseRepresentation
bin1100111110100…
…0101011000101
310210102100110221
43033220223011
5102413233110
65222344341
71230436141
oct317505305
9123370427
1054430405
11287a7407
121628b0b1
13b379b53
14732c221
154ba27da
hex33e8ac5

54430405 has 8 divisors (see below), whose sum is σ = 65895192. Its totient is φ = 43158528.

The previous prime is 54430399. The next prime is 54430423. The reversal of 54430405 is 50403445.

It can be written as a sum of positive squares in 4 ways, for example, as 231361 + 54199044 = 481^2 + 7362^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54430405 - 25 = 54430373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54430405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47604 + ... + 48733.

It is an arithmetic number, because the mean of its divisors is an integer number (8236899).

Almost surely, 254430405 is an apocalyptic number.

It is an amenable number.

54430405 is a deficient number, since it is larger than the sum of its proper divisors (11464787).

54430405 is a wasteful number, since it uses less digits than its factorization.

54430405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96455.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 54430405 is about 7377.6964562118. The cubic root of 54430405 is about 378.9778741060.

The spelling of 54430405 in words is "fifty-four million, four hundred thirty thousand, four hundred five".

Divisors: 1 5 113 565 96337 481685 10886081 54430405