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53456441 = 137390193
BaseRepresentation
bin1100101111101…
…0111000111001
310201120212110012
43023322320321
5102141101231
65145431305
71216241453
oct313727071
9121525405
1053456441
11281a1685
1215a9b535
13b0c873c
1471572d3
154a5de2b
hex32fae39

53456441 has 4 divisors (see below), whose sum is σ = 53846772. Its totient is φ = 53066112.

The previous prime is 53456423. The next prime is 53456461. The reversal of 53456441 is 14465435.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12752041 + 40704400 = 3571^2 + 6380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53456441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53456398 and 53456407.

It is not an unprimeable number, because it can be changed into a prime (53456411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194960 + ... + 195233.

It is an arithmetic number, because the mean of its divisors is an integer number (13461693).

Almost surely, 253456441 is an apocalyptic number.

It is an amenable number.

53456441 is a deficient number, since it is larger than the sum of its proper divisors (390331).

53456441 is a wasteful number, since it uses less digits than its factorization.

53456441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390330.

The product of its digits is 28800, while the sum is 32.

The square root of 53456441 is about 7311.3911808903. The cubic root of 53456441 is about 376.7038108704.

The spelling of 53456441 in words is "fifty-three million, four hundred fifty-six thousand, four hundred forty-one".

Divisors: 1 137 390193 53456441