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30030255252 = 223492685973
BaseRepresentation
bin11011111101111100…
…010101010010010100
32212111212020000210000
4123331330111102110
5443000221132002
621443512331300
72112114646404
oct337574252224
985455200700
1030030255252
1111810329278
1259a10a3b30
132aa772930a
14164c482804
15bab60361c
hex6fdf15494

30030255252 has 30 divisors (see below), whose sum is σ = 78505019978. Its totient is φ = 10010084976.

The previous prime is 30030255239. The next prime is 30030255259. The reversal of 30030255252 is 25255203003.

30030255252 is a `hidden beast` number, since 30 + 0 + 30 + 2 + 552 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15149671056 + 14880584196 = 123084^2 + 121986^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30030255259) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 46342663 + ... + 46343310.

Almost surely, 230030255252 is an apocalyptic number.

It is an amenable number.

30030255252 is an abundant number, since it is smaller than the sum of its proper divisors (48474764726).

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

30030255252 is a wasteful number, since it uses less digits than its factorization.

30030255252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92685989 (or 92685978 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

Adding to 30030255252 its reverse (25255203003), we get a palindrome (55285458255).

The spelling of 30030255252 in words is "thirty billion, thirty million, two hundred fifty-five thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 92685973 185371946 278057919 370743892 556115838 834173757 1112231676 1668347514 2502521271 3336695028 5005042542 7507563813 10010085084 15015127626 30030255252