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30404200 = 2352281541
BaseRepresentation
bin111001111111…
…0111001101000
32010012200201111
41303332321220
530240413300
63003400104
7516300661
oct163767150
963180644
1030404200
1116187142
12a223034
1363b6c68
144076368
152a089ba
hex1cfee68

30404200 has 48 divisors (see below), whose sum is σ = 71072460. Its totient is φ = 12096000.

The previous prime is 30404189. The next prime is 30404201. The reversal of 30404200 is 240403.

It can be written as a sum of positive squares in 6 ways, for example, as 12068676 + 18335524 = 3474^2 + 4282^2 .

It is not an unprimeable number, because it can be changed into a prime (30404201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55930 + ... + 56470.

Almost surely, 230404200 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 30404200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35536230).

30404200 is an abundant number, since it is smaller than the sum of its proper divisors (40668260).

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

30404200 is a wasteful number, since it uses less digits than its factorization.

30404200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 30404200 is about 5514.0003627131. Note that the first 3 decimals coincide. The cubic root of 30404200 is about 312.1125224208.

Adding to 30404200 its reverse (240403), we get a palindrome (30644603).

The spelling of 30404200 in words is "thirty million, four hundred four thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 281 541 562 1082 1124 1405 2164 2248 2705 2810 4328 5410 5620 7025 10820 11240 13525 14050 21640 27050 28100 54100 56200 108200 152021 304042 608084 760105 1216168 1520210 3040420 3800525 6080840 7601050 15202100 30404200