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6250000 = 2458
BaseRepresentation
bin10111110101111000010000
3102202112101111
4113311320100
53100000000
6341543104
7104060401
oct27657020
912675344
106250000
113589799
122114a94
1313aaa33
14b899a8
15836cba
hex5f5e10

6250000 has 45 divisors (see below), whose sum is σ = 15136711. Its totient is φ = 2500000.

The previous prime is 6249989. The next prime is 6250009. The reversal of 6250000 is 526.

The square root of 6250000 is 2500.

It is a perfect power (a square, a biquadrate), and thus also a powerful number.

6250000 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in 4 ways, for example, as 4443664 + 1806336 = 2108^2 + 1344^2 .

It is a Duffinian number.

It is a nialpdrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (6250009) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1249998 + ... + 1250002.

Almost surely, 26250000 is an apocalyptic number.

6250000 is the 2500-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6250000

6250000 is an abundant number, since it is smaller than the sum of its proper divisors (8886711).

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

6250000 is an frugal number, since it uses more digits than its factorization.

6250000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48 (or 7 counting only the distinct ones).

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

The cubic root of 6250000 is about 184.2015749320.

Adding to 6250000 its reverse (526), we get a palindrome (6250526).

The spelling of 6250000 in words is "six million, two hundred fifty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 625 1000 1250 2000 2500 3125 5000 6250 10000 12500 15625 25000 31250 50000 62500 78125 125000 156250 250000 312500 390625 625000 781250 1250000 1562500 3125000 6250000