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30194276640 = 25351117437823
BaseRepresentation
bin11100000111101110…
…000001100100100000
32212221021212011211020
4130013232001210200
5443314213323030
621512052045440
72116146055023
oct340756014440
985837764736
1030194276640
1111894977a40
125a28003880
132b026c72a8
14166617b1ba
15bbac02510
hex707b81920

30194276640 has 384 divisors, whose sum is σ = 112431255552. Its totient is φ = 6728171520.

The previous prime is 30194276633. The next prime is 30194276641. The reversal of 30194276640 is 4667249103.

It is a junction number, because it is equal to n+sod(n) for n = 30194276592 and 30194276601.

It is not an unprimeable number, because it can be changed into a prime (30194276641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3855769 + ... + 3863591.

It is an arithmetic number, because the mean of its divisors is an integer number (292789728).

Almost surely, 230194276640 is an apocalyptic number.

30194276640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30194276640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56215627776).

30194276640 is an abundant number, since it is smaller than the sum of its proper divisors (82236978912).

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

30194276640 is a wasteful number, since it uses less digits than its factorization.

30194276640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7912 (or 7904 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 30194276640 in words is "thirty billion, one hundred ninety-four million, two hundred seventy-six thousand, six hundred forty".