Search a number
-
+
13020231330 = 233548223079
BaseRepresentation
bin11000010000001000…
…01111011010100010
31020121101212021122000
430020010033122202
5203131134400310
65551552424430
7640440066051
oct141004173242
936541767560
1013020231330
115581643567
122634548116
1312c66364c2
148b7314398
155130eb4c0
hex30810f6a2

13020231330 has 32 divisors (see below), whose sum is σ = 34720617600. Its totient is φ = 3472061616.

The previous prime is 13020231317. The next prime is 13020231359. The reversal of 13020231330 is 3313202031.

13020231330 is a `hidden beast` number, since 1 + 302 + 0 + 2 + 31 + 330 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24111270 + ... + 24111809.

It is an arithmetic number, because the mean of its divisors is an integer number (1085019300).

Almost surely, 213020231330 is an apocalyptic number.

13020231330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13020231330 is an abundant number, since it is smaller than the sum of its proper divisors (21700386270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13020231330 is a wasteful number, since it uses less digits than its factorization.

13020231330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48223095 (or 48223089 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 13020231330 its reverse (3313202031), we get a palindrome (16333433361).

The spelling of 13020231330 in words is "thirteen billion, twenty million, two hundred thirty-one thousand, three hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 48223079 96446158 144669237 241115395 289338474 434007711 482230790 723346185 868015422 1302023133 1446692370 2170038555 2604046266 4340077110 6510115665 13020231330