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30104025 = 3527173373
BaseRepresentation
bin111001011010…
…1100111011001
32002122102221220
41302311213121
530201312100
62553122253
7513610560
oct162654731
962572856
1030104025
1115aa1666
12a0b9389
136310443
143dd8bd7
152999aa0
hex1cb59d9

30104025 has 48 divisors (see below), whose sum is σ = 60246144. Its totient is φ = 12948480.

The previous prime is 30104023. The next prime is 30104077. The reversal of 30104025 is 52040103.

It is not a de Polignac number, because 30104025 - 21 = 30104023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 30103995 and 30104013.

It is not an unprimeable number, because it can be changed into a prime (30104021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7239 + ... + 10611.

It is an arithmetic number, because the mean of its divisors is an integer number (1255128).

Almost surely, 230104025 is an apocalyptic number.

30104025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30104025 is an abundant number, since it is smaller than the sum of its proper divisors (30142119).

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

30104025 is a wasteful number, since it uses less digits than its factorization.

30104025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410 (or 3405 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 30104025 is about 5486.7134971675. The cubic root of 30104025 is about 311.0819805727.

Adding to 30104025 its reverse (52040103), we get a palindrome (82144128).

The spelling of 30104025 in words is "thirty million, one hundred four thousand, twenty-five".

Divisors: 1 3 5 7 15 17 21 25 35 51 75 85 105 119 175 255 357 425 525 595 1275 1785 2975 3373 8925 10119 16865 23611 50595 57341 70833 84325 118055 172023 252975 286705 354165 401387 590275 860115 1204161 1433525 1770825 2006935 4300575 6020805 10034675 30104025