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30425000 = 23551217
BaseRepresentation
bin111010000001…
…1111110101000
32010020202020212
41310003332220
530242100000
63004040252
7516415424
oct164037650
963222225
1030425000
11161a0831
12a233088
1363c3578
14407db84
152a0ec35
hex1d03fa8

30425000 has 48 divisors (see below), whose sum is σ = 71362620. Its totient is φ = 12160000.

The previous prime is 30424969. The next prime is 30425039. The reversal of 30425000 is 52403.

It can be written as a sum of positive squares in 6 ways, for example, as 5484964 + 24940036 = 2342^2 + 4994^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24392 + ... + 25608.

Almost surely, 230425000 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 30425000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35681310).

30425000 is an abundant number, since it is smaller than the sum of its proper divisors (40937620).

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

30425000 is an equidigital number, since it uses as much as digits as its factorization.

30425000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248 (or 1224 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 30425000 is about 5515.8861482086. The cubic root of 30425000 is about 312.1836799212.

Adding to 30425000 its reverse (52403), we get a palindrome (30477403).

It can be divided in two parts, 3042 and 5000, that multiplied together give a square (15210000 = 39002).

The spelling of 30425000 in words is "thirty million, four hundred twenty-five thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 625 1000 1217 1250 2434 2500 3125 4868 5000 6085 6250 9736 12170 12500 24340 25000 30425 48680 60850 121700 152125 243400 304250 608500 760625 1217000 1521250 3042500 3803125 6085000 7606250 15212500 30425000