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3125200 = 245213601
BaseRepresentation
bin1011111010111111010000
312212202222011
423322333100
51300001300
6150552304
735364241
oct13727720
95782864
103125200
111845011
121068694
13855640
145b4cc8
1541aeba
hex2fafd0

3125200 has 60 divisors (see below), whose sum is σ = 8099308. Its totient is φ = 1152000.

The previous prime is 3125191. The next prime is 3125209. The reversal of 3125200 is 25213.

It is an interprime number because it is at equal distance from previous prime (3125191) and next prime (3125209).

It can be written as a sum of positive squares in 6 ways, for example, as 69696 + 3055504 = 264^2 + 1748^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3125209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4900 + ... + 5500.

Almost surely, 23125200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3125200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4049654).

3125200 is an abundant number, since it is smaller than the sum of its proper divisors (4974108).

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

3125200 is a wasteful number, since it uses less digits than its factorization.

3125200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 3125200 is about 1767.8235206038. The cubic root of 3125200 is about 146.2040057964.

Adding to 3125200 its sum of digits (13), we get a palindrome (3125213).

The spelling of 3125200 in words is "three million, one hundred twenty-five thousand, two hundred".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 40 50 52 65 80 100 104 130 200 208 260 325 400 520 601 650 1040 1202 1300 2404 2600 3005 4808 5200 6010 7813 9616 12020 15025 15626 24040 30050 31252 39065 48080 60100 62504 78130 120200 125008 156260 195325 240400 312520 390650 625040 781300 1562600 3125200