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30746727019 = 523365916067
BaseRepresentation
bin11100101000101001…
…011101001001101011
32221100210101120021101
4130220221131021223
51000432130231034
622042545022231
72135634603361
oct345051351153
987323346241
1030746727019
11120487a90a8
125b61024977
132b8ccb4bc8
1416b96a7631
15bee47b514
hex728a5d26b

30746727019 has 8 divisors (see below), whose sum is σ = 30815853120. Its totient is φ = 30677641416.

The previous prime is 30746727013. The next prime is 30746727031. The reversal of 30746727019 is 91072764703.

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 30746727019 - 27 = 30746726891 is a prime.

It is a super-2 number, since 2×307467270192 (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 30746727019.

It is not an unprimeable number, because it can be changed into a prime (30746727013) 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, 1905624 + ... + 1921690.

It is an arithmetic number, because the mean of its divisors is an integer number (3851981640).

Almost surely, 230746727019 is an apocalyptic number.

30746727019 is a deficient number, since it is larger than the sum of its proper divisors (69126101).

30746727019 is a wasteful number, since it uses less digits than its factorization.

30746727019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20249.

The product of its (nonzero) digits is 444528, while the sum is 46.

The spelling of 30746727019 in words is "thirty billion, seven hundred forty-six million, seven hundred twenty-seven thousand, nineteen".

Divisors: 1 523 3659 16067 1913657 8403041 58789153 30746727019