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30055000453 = 577214124329
BaseRepresentation
bin11011111111011010…
…101110100110000101
32212120120210012210221
4123333122232212011
5443023040003303
621450154544341
72112535201012
oct337732564605
985516705727
1030055000453
111182329a755
1259a94380b1
132aac8b154a
141651884709
15bad8904bd
hex6ff6ae985

30055000453 has 8 divisors (see below), whose sum is σ = 30122389080. Its totient is φ = 29987665920.

The previous prime is 30055000429. The next prime is 30055000561. The reversal of 30055000453 is 35400055003.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25997692644 + 4057307809 = 161238^2 + 63697^2 .

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 30055000453 - 25 = 30055000421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30055000153) 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, 1223193 + ... + 1247521.

It is an arithmetic number, because the mean of its divisors is an integer number (3765298635).

Almost surely, 230055000453 is an apocalyptic number.

It is an amenable number.

30055000453 is a deficient number, since it is larger than the sum of its proper divisors (67388627).

30055000453 is a wasteful number, since it uses less digits than its factorization.

30055000453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27047.

The product of its (nonzero) digits is 4500, while the sum is 25.

Adding to 30055000453 its reverse (35400055003), we get a palindrome (65455055456).

The spelling of 30055000453 in words is "thirty billion, fifty-five million, four hundred fifty-three", and thus it is an aban number.

Divisors: 1 577 2141 24329 1235357 14037833 52088389 30055000453