Search a number
-
+
1025290 = 25797151
BaseRepresentation
bin11111010010100001010
31221002102201
43322110022
5230302130
633550414
711500120
oct3722412
91832381
101025290
11640352
1241540a
1329b8a6
141c9910
15153bca
hexfa50a

1025290 has 32 divisors (see below), whose sum is σ = 2145024. Its totient is φ = 345600.

The previous prime is 1025281. The next prime is 1025303. The reversal of 1025290 is 925201.

1025290 is nontrivially palindromic in base 9.

1025290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 4.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6715 + ... + 6865.

It is an arithmetic number, because the mean of its divisors is an integer number (67032).

21025290 is an apocalyptic number.

1025290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1025290 is an abundant number, since it is smaller than the sum of its proper divisors (1119734).

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

1025290 is a wasteful number, since it uses less digits than its factorization.

1025290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1025290 is about 1012.5660472285. The cubic root of 1025290 is about 100.8359917034.

The spelling of 1025290 in words is "one million, twenty-five thousand, two hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 97 151 194 302 485 679 755 970 1057 1358 1510 2114 3395 5285 6790 10570 14647 29294 73235 102529 146470 205058 512645 1025290