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53030505 = 3511321397
BaseRepresentation
bin1100101001001…
…0111001101001
310200210020011210
43022102321221
5102033434010
65132343333
71212515613
oct312227151
9120706153
1053030505
1127a30670
1215914b49
13aca98c8
147085db3
1549c7b20
hex3292e69

53030505 has 16 divisors (see below), whose sum is σ = 92562624. Its totient is φ = 25711680.

The previous prime is 53030459. The next prime is 53030519. The reversal of 53030505 is 50503035.

53030505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53030505 - 212 = 53026409 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160534 + ... + 160863.

It is an arithmetic number, because the mean of its divisors is an integer number (5785164).

Almost surely, 253030505 is an apocalyptic number.

53030505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53030505 is a deficient number, since it is larger than the sum of its proper divisors (39532119).

53030505 is a wasteful number, since it uses less digits than its factorization.

53030505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321416.

The product of its (nonzero) digits is 1125, while the sum is 21.

The square root of 53030505 is about 7282.2046799029. The cubic root of 53030505 is about 375.7006279505.

It can be divided in two parts, 53030 and 505, that added together give a palindrome (53535).

The spelling of 53030505 in words is "fifty-three million, thirty thousand, five hundred five".

Divisors: 1 3 5 11 15 33 55 165 321397 964191 1606985 3535367 4820955 10606101 17676835 53030505