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30679550389 = 614091122939
BaseRepresentation
bin11100100100101001…
…001100100110110101
32221012002222122021001
4130210221030212311
51000312431103024
622032145123301
72134160606215
oct344451144665
987162878231
1030679550389
1112013896324
125b42629531
132b7c0c4517
1416b07bc245
15be860c244
hex724a4c9b5

30679550389 has 8 divisors (see below), whose sum is σ = 31190369760. Its totient is φ = 30168985200.

The previous prime is 30679550387. The next prime is 30679550411. The reversal of 30679550389 is 98305597603.

It is a happy number.

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 30679550389 - 21 = 30679550387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30679550387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188082 + ... + 311020.

It is an arithmetic number, because the mean of its divisors is an integer number (3898796220).

Almost surely, 230679550389 is an apocalyptic number.

It is an amenable number.

30679550389 is a deficient number, since it is larger than the sum of its proper divisors (510819371).

30679550389 is a wasteful number, since it uses less digits than its factorization.

30679550389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127091.

The product of its (nonzero) digits is 6123600, while the sum is 55.

The spelling of 30679550389 in words is "thirty billion, six hundred seventy-nine million, five hundred fifty thousand, three hundred eighty-nine".

Divisors: 1 61 4091 122939 249551 7499279 502943449 30679550389