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4528125 = 3255723
BaseRepresentation
bin10001010001011111111101
322112001102100
4101101133331
52124400000
6241015313
753326350
oct21213775
98461370
104528125
112613058
121624539
13c27084
1485c297
155e6a00
hex4517fd

4528125 has 72 divisors (see below), whose sum is σ = 9749376. Its totient is φ = 1980000.

The previous prime is 4528109. The next prime is 4528141. The reversal of 4528125 is 5218254.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4528109) and next prime (4528141).

It is not a de Polignac number, because 4528125 - 24 = 4528109 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 196864 + ... + 196886.

It is an arithmetic number, because the mean of its divisors is an integer number (135408).

Almost surely, 24528125 is an apocalyptic number.

4528125 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4528125 is an abundant number, since it is smaller than the sum of its proper divisors (5221251).

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

4528125 is an equidigital number, since it uses as much as digits as its factorization.

4528125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61 (or 38 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 4528125 is about 2127.9391438667. The cubic root of 4528125 is about 165.4395991135.

It can be divided in two parts, 45 and 28125, that multiplied together give a square (1265625 = 11252).

The spelling of 4528125 in words is "four million, five hundred twenty-eight thousand, one hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 23 25 35 45 63 69 75 105 115 125 161 175 207 225 315 345 375 483 525 575 625 805 875 1035 1125 1449 1575 1725 1875 2415 2625 2875 3125 4025 4375 5175 5625 7245 7875 8625 9375 12075 13125 14375 20125 21875 25875 28125 36225 39375 43125 60375 65625 71875 100625 129375 181125 196875 215625 301875 503125 646875 905625 1509375 4528125