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30513403230 = 23531142323057
BaseRepresentation
bin11100011010101111…
…011001010101011110
32220202112100111012120
4130122233121111132
5444442412400410
622003452043410
72130102435162
oct343257312536
986675314176
1030513403230
1111a39025522
125ab6a63566
132b53860aab
1416966ccca2
15bd8c3d570
hex71abd955e

30513403230 has 64 divisors (see below), whose sum is σ = 75650899968. Its totient is φ = 7868551680.

The previous prime is 30513403189. The next prime is 30513403231. The reversal of 30513403230 is 3230431503.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30513403230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30513403231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1311862 + ... + 1334918.

It is an arithmetic number, because the mean of its divisors is an integer number (1182045312).

Almost surely, 230513403230 is an apocalyptic number.

30513403230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30513403230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37825449984).

30513403230 is an abundant number, since it is smaller than the sum of its proper divisors (45137496738).

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

30513403230 is a wasteful number, since it uses less digits than its factorization.

30513403230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24521.

The product of its (nonzero) digits is 3240, while the sum is 24.

Adding to 30513403230 its reverse (3230431503), we get a palindrome (33743834733).

The spelling of 30513403230 in words is "thirty billion, five hundred thirteen million, four hundred three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 1423 2846 4269 7115 8538 14230 21345 23057 42690 44113 46114 69171 88226 115285 132339 138342 220565 230570 264678 345855 441130 661695 691710 714767 1323390 1429534 2144301 3573835 4288602 7147670 10721505 21443010 32810111 65620222 98430333 164050555 196860666 328101110 492151665 984303330 1017113441 2034226882 3051340323 5085567205 6102680646 10171134410 15256701615 30513403230