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30412402400 = 2552307123829
BaseRepresentation
bin11100010100101110…
…000110111011100000
32220111111022010010002
4130110232012323200
5444241033334100
621545443155132
72124435104132
oct342456067340
986444263102
1030412402400
1111997010066
125a89075aa8
132b389598a3
14168711b052
15bcee3c2d5
hex714b86ee0

30412402400 has 72 divisors (see below), whose sum is σ = 74486716920. Its totient is φ = 12125237760.

The previous prime is 30412402357. The next prime is 30412402403. The reversal of 30412402400 is 420421403.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30412402403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183686 + ... + 307514.

It is an arithmetic number, because the mean of its divisors is an integer number (1034537735).

Almost surely, 230412402400 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 30412402400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37243358460).

30412402400 is an abundant number, since it is smaller than the sum of its proper divisors (44074314520).

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

30412402400 is a wasteful number, since it uses less digits than its factorization.

30412402400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124156 (or 124143 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 30412402400 its reverse (420421403), we get a palindrome (30832823803).

The spelling of 30412402400 in words is "thirty billion, four hundred twelve million, four hundred two thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 307 400 614 800 1228 1535 2456 3070 4912 6140 7675 9824 12280 15350 24560 30700 49120 61400 122800 123829 245600 247658 495316 619145 990632 1238290 1981264 2476580 3095725 3962528 4953160 6191450 9906320 12382900 19812640 24765800 38015503 49531600 76031006 99063200 152062012 190077515 304124024 380155030 608248048 760310060 950387575 1216496096 1520620120 1900775150 3041240240 3801550300 6082480480 7603100600 15206201200 30412402400