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30028395103 = 717472455507
BaseRepresentation
bin11011111101110101…
…001111001001011111
32212111201201112010121
4123331311033021133
5442444232120403
621443404415411
72112063101260
oct337565171137
985451645117
1030028395103
111180a278763
1259a0547567
132aa7227735
14164c11a967
15bab3873bd
hex6fdd4f25f

30028395103 has 8 divisors (see below), whose sum is σ = 34337823872. Its totient is φ = 25723880856.

The previous prime is 30028395073. The next prime is 30028395107. The reversal of 30028395103 is 30159382003.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30028395103 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 (30028395107) 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, 1215525 + ... + 1239982.

It is an arithmetic number, because the mean of its divisors is an integer number (4292227984).

Almost surely, 230028395103 is an apocalyptic number.

30028395103 is a deficient number, since it is larger than the sum of its proper divisors (4309428769).

30028395103 is a wasteful number, since it uses less digits than its factorization.

30028395103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457261.

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 30028395103 in words is "thirty billion, twenty-eight million, three hundred ninety-five thousand, one hundred three".

Divisors: 1 7 1747 12229 2455507 17188549 4289770729 30028395103