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30252500 = 225412101
BaseRepresentation
bin111001101100…
…1110111010100
32002220222121222
41303121313110
530221040000
63000225512
7515066465
oct163316724
962828558
1030252500
1116093173
12a16b298
136362bb5
144036d6c
1529c8a85
hex1cd9dd4

30252500 has 30 divisors (see below), whose sum is σ = 66161634. Its totient is φ = 12100000.

The previous prime is 30252499. The next prime is 30252527. The reversal of 30252500 is 525203.

It can be written as a sum of positive squares in 5 ways, for example, as 2521744 + 27730756 = 1588^2 + 5266^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3551 + ... + 8550.

Almost surely, 230252500 is an apocalyptic number.

It is an amenable number.

30252500 is an abundant number, since it is smaller than the sum of its proper divisors (35909134).

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

30252500 is a wasteful number, since it uses less digits than its factorization.

30252500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12125 (or 12108 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 30252500 is about 5500.2272680317. The cubic root of 30252500 is about 311.5925675629.

Adding to 30252500 its reverse (525203), we get a palindrome (30777703).

It can be divided in two parts, 3025 and 2500, that multiplied together give a square (7562500 = 27502).

The spelling of 30252500 in words is "thirty million, two hundred fifty-two thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 625 1250 2500 12101 24202 48404 60505 121010 242020 302525 605050 1210100 1512625 3025250 6050500 7563125 15126250 30252500