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12575500 = 225373593
BaseRepresentation
bin101111111110…
…001100001100
3212122220100021
4233332030030
511204404000
61125311524
7211614160
oct57761414
925586307
1012575500
11710a183
1242655a4
1327b3c32
141954ca0
15118611a
hexbfe30c

12575500 has 48 divisors (see below), whose sum is σ = 31397184. Its totient is φ = 4310400.

The previous prime is 12575489. The next prime is 12575501. The reversal of 12575500 is 557521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (12575501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1704 + ... + 5296.

It is an arithmetic number, because the mean of its divisors is an integer number (654108).

Almost surely, 212575500 is an apocalyptic number.

12575500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12575500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15698592).

12575500 is an abundant number, since it is smaller than the sum of its proper divisors (18821684).

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

12575500 is a wasteful number, since it uses less digits than its factorization.

12575500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619 (or 3607 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 12575500 is about 3546.1951440946. The cubic root of 12575500 is about 232.5457573640.

It can be divided in two parts, 125 and 75500, that added together give a square (75625 = 2752).

The spelling of 12575500 in words is "twelve million, five hundred seventy-five thousand, five hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 125 140 175 250 350 500 700 875 1750 3500 3593 7186 14372 17965 25151 35930 50302 71860 89825 100604 125755 179650 251510 359300 449125 503020 628775 898250 1257550 1796500 2515100 3143875 6287750 12575500