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30456125 = 53734807
BaseRepresentation
bin111010000101…
…1100100111101
32010022022221122
41310023210331
530244044000
63004440325
7516605240
oct164134475
963268848
1030456125
1116212157
12a2490a5
13640479b
14408b257
152a19085
hex1d0b93d

30456125 has 16 divisors (see below), whose sum is σ = 43440384. Its totient is φ = 20883600.

The previous prime is 30456091. The next prime is 30456137. The reversal of 30456125 is 52165403.

It is not a de Polignac number, because 30456125 - 210 = 30455101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30456094 and 30456103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16529 + ... + 18278.

It is an arithmetic number, because the mean of its divisors is an integer number (2715024).

Almost surely, 230456125 is an apocalyptic number.

30456125 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30456125 is a deficient number, since it is larger than the sum of its proper divisors (12984259).

30456125 is an equidigital number, since it uses as much as digits as its factorization.

30456125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34829 (or 34819 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 30456125 is about 5518.7068231607. The cubic root of 30456125 is about 312.2900990447.

The spelling of 30456125 in words is "thirty million, four hundred fifty-six thousand, one hundred twenty-five".

Divisors: 1 5 7 25 35 125 175 875 34807 174035 243649 870175 1218245 4350875 6091225 30456125