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1030000013 = 71920113851
BaseRepresentation
bin111101011001001…
…000110110001101
32122210010102101122
4331121020312031
54102140000023
6250112250325
734344566330
oct7531106615
92583112348
101030000013
11489454289
12248b409a5
13135512183
149ab1a617
156065a2c8
hex3d648d8d

1030000013 has 16 divisors (see below), whose sum is σ = 1240035840. Its totient is φ = 835758000.

The previous prime is 1030000001. The next prime is 1030000021. The reversal of 1030000013 is 3100000301.

It is a de Polignac number, because none of the positive numbers 2k-1030000013 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 (1030000613) 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, 265538 + ... + 269388.

It is an arithmetic number, because the mean of its divisors is an integer number (77502240).

Almost surely, 21030000013 is an apocalyptic number.

It is an amenable number.

1030000013 is a deficient number, since it is larger than the sum of its proper divisors (210035827).

1030000013 is a wasteful number, since it uses less digits than its factorization.

1030000013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888.

The product of its (nonzero) digits is 9, while the sum is 8.

The square root of 1030000013 is about 32093.6132742949. The cubic root of 1030000013 is about 1009.9016382987.

Adding to 1030000013 its reverse (3100000301), we get a palindrome (4130000314).

The spelling of 1030000013 in words is "one billion, thirty million, thirteen", and thus it is an aban number and an uban number.

Divisors: 1 7 19 133 2011 3851 14077 26957 38209 73169 267463 512183 7744361 54210527 147142859 1030000013