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30526013 = 713133289
BaseRepresentation
bin111010001110…
…0101000111101
32010102212211002
41310130220331
530303313023
63010140045
7520316060
oct164345075
963385732
1030526013
111625a711
12a281625
13642a53b
1440a88d7
152a2eb28
hex1d1ca3d

30526013 has 8 divisors (see below), whose sum is σ = 35154240. Its totient is φ = 25964640.

The previous prime is 30525977. The next prime is 30526019. The reversal of 30526013 is 31062503.

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 30526013 - 26 = 30525949 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 (30526019) 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, 15728 + ... + 17561.

It is an arithmetic number, because the mean of its divisors is an integer number (4394280).

Almost surely, 230526013 is an apocalyptic number.

It is an amenable number.

30526013 is a deficient number, since it is larger than the sum of its proper divisors (4628227).

30526013 is a wasteful number, since it uses less digits than its factorization.

30526013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33427.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 30526013 is about 5525.0351130106. The cubic root of 30526013 is about 312.5287883879.

Adding to 30526013 its reverse (31062503), we get a palindrome (61588516).

The spelling of 30526013 in words is "thirty million, five hundred twenty-six thousand, thirteen".

Divisors: 1 7 131 917 33289 233023 4360859 30526013