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30104511 = 310034837
BaseRepresentation
bin111001011010…
…1101110111111
32002122110121220
41302311232333
530201321021
62553124423
7513612153
oct162655677
962573556
1030104511
1115aa1a68
12a0b9713
136310728
143dd9063
152999cc6
hex1cb5bbf

30104511 has 4 divisors (see below), whose sum is σ = 40139352. Its totient is φ = 20069672.

The previous prime is 30104509. The next prime is 30104519. The reversal of 30104511 is 11540103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11540103 = 33846701.

It is a cyclic number.

It is not a de Polignac number, because 30104511 - 21 = 30104509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30104519) 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, 5017416 + ... + 5017421.

It is an arithmetic number, because the mean of its divisors is an integer number (10034838).

Almost surely, 230104511 is an apocalyptic number.

30104511 is a deficient number, since it is larger than the sum of its proper divisors (10034841).

30104511 is a wasteful number, since it uses less digits than its factorization.

30104511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10034840.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 30104511 is about 5486.7577857966. The cubic root of 30104511 is about 311.0836546017.

Adding to 30104511 its reverse (11540103), we get a palindrome (41644614).

The spelling of 30104511 in words is "thirty million, one hundred four thousand, five hundred eleven".

Divisors: 1 3 10034837 30104511