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905248030 = 25233935861
BaseRepresentation
bin110101111101001…
…111110100011110
32100002101100211211
4311331033310132
53323220414110
6225454335034
731301324041
oct6575176436
92302340754
10905248030
11424a97275
122131ba47a
1311571332b
1488324c58
155471698a
hex35f4fd1e

905248030 has 16 divisors (see below), whose sum is σ = 1700292384. Its totient is φ = 346355680.

The previous prime is 905248013. The next prime is 905248037. The reversal of 905248030 is 30842509.

It is a junction number, because it is equal to n+sod(n) for n = 905247983 and 905248001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (905248037) 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, 1967701 + ... + 1968160.

It is an arithmetic number, because the mean of its divisors is an integer number (106268274).

Almost surely, 2905248030 is an apocalyptic number.

905248030 is a deficient number, since it is larger than the sum of its proper divisors (795044354).

905248030 is a wasteful number, since it uses less digits than its factorization.

905248030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3935891.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 905248030 is about 30087.3400286566. The cubic root of 905248030 is about 967.3623847517.

The spelling of 905248030 in words is "nine hundred five million, two hundred forty-eight thousand, thirty".

Divisors: 1 2 5 10 23 46 115 230 3935861 7871722 19679305 39358610 90524803 181049606 452624015 905248030