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30494013 = 3113472663
BaseRepresentation
bin111010001010…
…0110100111101
32010101020220220
41310110310331
530301302023
63005331553
7520123554
oct164246475
963336826
1030494013
1116238670
12a266bb9
136418ac4
14409ad9b
152a253e3
hex1d14d3d

30494013 has 16 divisors (see below), whose sum is σ = 44499456. Its totient is φ = 18421040.

The previous prime is 30493963. The next prime is 30494029. The reversal of 30494013 is 31049403.

It is not a de Polignac number, because 30494013 - 212 = 30489917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30494213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10120 + ... + 12782.

It is an arithmetic number, because the mean of its divisors is an integer number (2781216).

Almost surely, 230494013 is an apocalyptic number.

30494013 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

30494013 is a deficient number, since it is larger than the sum of its proper divisors (14005443).

30494013 is a wasteful number, since it uses less digits than its factorization.

30494013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 30494013 is about 5522.1384444796. The cubic root of 30494013 is about 312.4195436608.

The spelling of 30494013 in words is "thirty million, four hundred ninety-four thousand, thirteen".

Divisors: 1 3 11 33 347 1041 2663 3817 7989 11451 29293 87879 924061 2772183 10164671 30494013