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53085361 = 731244633
BaseRepresentation
bin1100101010000…
…0010010110001
310200220000102111
43022200102301
5102042212421
65133445321
71213134550
oct312402261
9120800374
1053085361
1127a688aa
1215940841
13acc8874
14709bd97
1549d8ee1
hex32a04b1

53085361 has 8 divisors (see below), whose sum is σ = 62626304. Its totient is φ = 44033760.

The previous prime is 53085359. The next prime is 53085371. The reversal of 53085361 is 16358035.

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 53085361 - 21 = 53085359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53085371) 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, 122100 + ... + 122533.

It is an arithmetic number, because the mean of its divisors is an integer number (7828288).

Almost surely, 253085361 is an apocalyptic number.

It is an amenable number.

53085361 is a deficient number, since it is larger than the sum of its proper divisors (9540943).

53085361 is a wasteful number, since it uses less digits than its factorization.

53085361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244671.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 53085361 is about 7285.9701481683. The cubic root of 53085361 is about 375.8301278263.

The spelling of 53085361 in words is "fifty-three million, eighty-five thousand, three hundred sixty-one".

Divisors: 1 7 31 217 244633 1712431 7583623 53085361