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30031030000 = 24543837841
BaseRepresentation
bin11011111101111111…
…010010011011110000
32212111220200101112101
4123331333102123300
5443000420430000
621443541110144
72112124354216
oct337577223360
985456611471
1030031030000
1111810808364
1259a13b8354
132aa793ab4a
14164c604cb6
15bab707e6a
hex6fdfd26f0

30031030000 has 100 divisors (see below), whose sum is σ = 72907262208. Its totient is φ = 11979520000.

The previous prime is 30031029997. The next prime is 30031030061. The reversal of 30031030000 is 3013003.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3826080 + ... + 3833920.

Almost surely, 230031030000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30031030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36453631104).

30031030000 is an abundant number, since it is smaller than the sum of its proper divisors (42876232208).

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

30031030000 is an equidigital number, since it uses as much as digits as its factorization.

30031030000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8252 (or 8231 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 10.

Adding to 30031030000 its reverse (3013003), we get a palindrome (30034043003).

The spelling of 30031030000 in words is "thirty billion, thirty-one million, thirty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 383 400 500 625 766 1000 1250 1532 1915 2000 2500 3064 3830 5000 6128 7660 7841 9575 10000 15320 15682 19150 30640 31364 38300 39205 47875 62728 76600 78410 95750 125456 153200 156820 191500 196025 239375 313640 383000 392050 478750 627280 766000 784100 957500 980125 1568200 1915000 1960250 3003103 3136400 3830000 3920500 4900625 6006206 7841000 9801250 12012412 15015515 15682000 19602500 24024824 30031030 39205000 48049648 60062060 75077575 78410000 120124120 150155150 240248240 300310300 375387875 600620600 750775750 1201241200 1501551500 1876939375 3003103000 3753878750 6006206000 7507757500 15015515000 30031030000