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30053501 = 174394027
BaseRepresentation
bin111001010100…
…1010001111101
32002112212122122
41302221101331
530143203001
62552052325
7513310352
oct162512175
962485578
1030053501
1115a67705
12a0940a5
1362c344a
143dc4629
152989b1b
hex1ca947d

30053501 has 8 divisors (see below), whose sum is σ = 31901760. Its totient is φ = 28214208.

The previous prime is 30053489. The next prime is 30053531. The reversal of 30053501 is 10535003.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30053501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30053501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30053531) 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, 5450 + ... + 9476.

It is an arithmetic number, because the mean of its divisors is an integer number (3987720).

Almost surely, 230053501 is an apocalyptic number.

It is an amenable number.

30053501 is a deficient number, since it is larger than the sum of its proper divisors (1848259).

30053501 is a wasteful number, since it uses less digits than its factorization.

30053501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4483.

The product of its (nonzero) digits is 225, while the sum is 17.

The square root of 30053501 is about 5482.1073502805. The cubic root of 30053501 is about 310.9078520640.

Adding to 30053501 its reverse (10535003), we get a palindrome (40588504).

The spelling of 30053501 in words is "thirty million, fifty-three thousand, five hundred one".

Divisors: 1 17 439 4027 7463 68459 1767853 30053501