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30481300 = 2252304813
BaseRepresentation
bin111010001000…
…1101110010100
32010100121111001
41310101232110
530300400200
63005153044
7520041523
oct164215624
963317431
1030481300
111622a063
12a25b784
136413095
1440964ba
152a2176a
hex1d11b94

30481300 has 18 divisors (see below), whose sum is σ = 66144638. Its totient is φ = 12192480.

The previous prime is 30481261. The next prime is 30481309. The reversal of 30481300 is 318403.

It can be written as a sum of positive squares in 3 ways, for example, as 407044 + 30074256 = 638^2 + 5484^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30481309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152307 + ... + 152506.

Almost surely, 230481300 is an apocalyptic number.

It is an amenable number.

30481300 is an abundant number, since it is smaller than the sum of its proper divisors (35663338).

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

30481300 is a wasteful number, since it uses less digits than its factorization.

30481300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304827 (or 304820 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 30481300 is about 5520.9872305594. The cubic root of 30481300 is about 312.3761215664.

Adding to 30481300 its reverse (318403), we get a palindrome (30799703).

The spelling of 30481300 in words is "thirty million, four hundred eighty-one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 304813 609626 1219252 1524065 3048130 6096260 7620325 15240650 30481300