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30194487450 = 237521914533
BaseRepresentation
bin11100000111101110…
…110101000010011010
32212221022020220000000
4130013232311002122
5443314242044300
621512100353430
72116150623441
oct340756650232
985838226000
1030194487450
1111895001366
125a280a5876
132b0276c22a
1416661d3d58
15bbac44c00
hex707bb509a

30194487450 has 192 divisors, whose sum is σ = 88669027200. Its totient is φ = 7627556160.

The previous prime is 30194487403. The next prime is 30194487461. The reversal of 30194487450 is 5478449103.

30194487450 is a `hidden beast` number, since 3 + 0 + 194 + 4 + 8 + 7 + 450 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 30194487396 and 30194487405.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2070384 + ... + 2084916.

It is an arithmetic number, because the mean of its divisors is an integer number (461817850).

Almost surely, 230194487450 is an apocalyptic number.

30194487450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30194487450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44334513600).

30194487450 is an abundant number, since it is smaller than the sum of its proper divisors (58474539750).

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

30194487450 is a wasteful number, since it uses less digits than its factorization.

30194487450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14585 (or 14562 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 30194487450 in words is "thirty billion, one hundred ninety-four million, four hundred eighty-seven thousand, four hundred fifty".