Search a number
-
+
30647345746 = 297157976009
BaseRepresentation
bin11100100010101110…
…010110001001010010
32221002212101110210111
4130202232112021102
51000231210030441
622025034551534
72133320066143
oct344256261122
987085343714
1030647345746
1111aa769a516
125b338985aa
132b75529c14
1416aa3d7aca
15be589a081
hex722b96252

30647345746 has 8 divisors (see below), whose sum is σ = 46444946940. Its totient is φ = 15165696768.

The previous prime is 30647345719. The next prime is 30647345749. The reversal of 30647345746 is 64754374603.

It can be written as a sum of positive squares in 2 ways, for example, as 30029077521 + 618268225 = 173289^2 + 24865^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30647345746.

It is not an unprimeable number, because it can be changed into a prime (30647345749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78987811 + ... + 78988198.

Almost surely, 230647345746 is an apocalyptic number.

30647345746 is a deficient number, since it is larger than the sum of its proper divisors (15797601194).

30647345746 is a wasteful number, since it uses less digits than its factorization.

30647345746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157976108.

The product of its (nonzero) digits is 5080320, while the sum is 49.

The spelling of 30647345746 in words is "thirty billion, six hundred forty-seven million, three hundred forty-five thousand, seven hundred forty-six".

Divisors: 1 2 97 194 157976009 315952018 15323672873 30647345746