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53270989 = 315332423
BaseRepresentation
bin1100101100110…
…1100111001101
310201020110001121
43023031213031
5102114132424
65141440541
71214540002
oct313154715
9121213047
1053270989
1128085312
1215a10151
13b0621c5
1471098a9
154a23ee4
hex32cd9cd

53270989 has 8 divisors (see below), whose sum is σ = 56028672. Its totient is φ = 50578320.

The previous prime is 53270983. The next prime is 53270993. The reversal of 53270989 is 98907235.

It is a happy number.

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 53270989 - 23 = 53270981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53270981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14569 + ... + 17854.

It is an arithmetic number, because the mean of its divisors is an integer number (7003584).

Almost surely, 253270989 is an apocalyptic number.

It is an amenable number.

53270989 is a deficient number, since it is larger than the sum of its proper divisors (2757683).

53270989 is a wasteful number, since it uses less digits than its factorization.

53270989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32507.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 53270989 is about 7298.6977605598. The cubic root of 53270989 is about 376.2676837051.

The spelling of 53270989 in words is "fifty-three million, two hundred seventy thousand, nine hundred eighty-nine".

Divisors: 1 31 53 1643 32423 1005113 1718419 53270989