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30447189019 = 136734956589
BaseRepresentation
bin11100010110110010…
…110011110000011011
32220120220202110101101
4130112302303300123
5444323440022034
621553124532231
72125336556632
oct342662636033
986526673341
1030447189019
1111a0470a835
125a98851077
132b42c194a0
14168b9b4519
15bd300e514
hex716cb3c1b

30447189019 has 8 divisors (see below), whose sum is σ = 33278673680. Its totient is φ = 27685617696.

The previous prime is 30447188987. The next prime is 30447189029. The reversal of 30447189019 is 91098174403.

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 30447189019 - 25 = 30447188987 is a prime.

It is a super-2 number, since 2×304471890192 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30447189019.

It is not an unprimeable number, because it can be changed into a prime (30447189029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17477424 + ... + 17479165.

It is an arithmetic number, because the mean of its divisors is an integer number (4159834210).

Almost surely, 230447189019 is an apocalyptic number.

30447189019 is a deficient number, since it is larger than the sum of its proper divisors (2831484661).

30447189019 is a wasteful number, since it uses less digits than its factorization.

30447189019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34956669.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 30447189019 in words is "thirty billion, four hundred forty-seven million, one hundred eighty-nine thousand, nineteen".

Divisors: 1 13 67 871 34956589 454435657 2342091463 30447189019