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53000622 = 233981493
BaseRepresentation
bin1100101000101…
…1100110101110
310200201201012000
43022023212232
5102032004442
65131553130
71212332523
oct312134656
9120651160
1053000622
1127a10174
12158bb7a6
13ac9911c
14707914a
1549bdd4c
hex328b9ae

53000622 has 16 divisors (see below), whose sum is σ = 117779280. Its totient is φ = 17666856.

The previous prime is 53000609. The next prime is 53000627. The reversal of 53000622 is 22600035.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 53000595 and 53000604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53000627) 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, 490693 + ... + 490800.

It is an arithmetic number, because the mean of its divisors is an integer number (7361205).

Almost surely, 253000622 is an apocalyptic number.

53000622 is an abundant number, since it is smaller than the sum of its proper divisors (64778658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53000622 is a wasteful number, since it uses less digits than its factorization.

53000622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981504 (or 981498 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 53000622 is about 7280.1526082906. The cubic root of 53000622 is about 375.6300448564.

Adding to 53000622 its reverse (22600035), we get a palindrome (75600657).

The spelling of 53000622 in words is "fifty-three million, six hundred twenty-two", and thus it is an aban number.

Divisors: 1 2 3 6 9 18 27 54 981493 1962986 2944479 5888958 8833437 17666874 26500311 53000622