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53545089 = 3131372951
BaseRepresentation
bin1100110001000…
…0100010000001
310201202101001110
43030100202001
5102201420324
65151353533
71220061063
oct314204201
9121671043
1053545089
1128252244
1215b228a9
13b129bb0
14717b733
154a7a329
hex3310881

53545089 has 8 divisors (see below), whose sum is σ = 76885312. Its totient is φ = 32950800.

The previous prime is 53545069. The next prime is 53545099. The reversal of 53545089 is 98054535.

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

It is not a de Polignac number, because 53545089 - 213 = 53536897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1372951 = 53545089 / (5 + 3 + 5 + 4 + 5 + 0 + 8 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53545039) 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, 686437 + ... + 686514.

It is an arithmetic number, because the mean of its divisors is an integer number (9610664).

Almost surely, 253545089 is an apocalyptic number.

It is an amenable number.

53545089 is a deficient number, since it is larger than the sum of its proper divisors (23340223).

53545089 is a wasteful number, since it uses less digits than its factorization.

53545089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372967.

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 53545089 is about 7317.4509906114. The cubic root of 53545089 is about 376.9119279619.

The spelling of 53545089 in words is "fifty-three million, five hundred forty-five thousand, eighty-nine".

Divisors: 1 3 13 39 1372951 4118853 17848363 53545089