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1010025 = 3252672
BaseRepresentation
bin11110110100101101001
31220022111100
43312211221
5224310100
633352013
711404452
oct3664551
91808440
101010025
1162a935
12408609
13294963
141c4129
1514e400
hexf6969

1010025 has 27 divisors (see below), whose sum is σ = 1836471. Its totient is φ = 530640.

The previous prime is 1010003. The next prime is 1010033. The reversal of 1010025 is 5200101.

It is a happy number.

The square root of 1010025 is 1005.

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

It can be written as a sum of positive squares in only one way, i.e., 363609 + 646416 = 603^2 + 804^2 .

It is not a de Polignac number, because 1010025 - 25 = 1009993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1009989 and 1010016.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 15042 + ... + 15108.

21010025 is an apocalyptic number.

1010025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1010025 is the 1005-th square number.

1010025 is the 503-rd centered octagonal number.

It is an amenable number.

1010025 is a deficient number, since it is larger than the sum of its proper divisors (826446).

1010025 is an equidigital number, since it uses as much as digits as its factorization.

1010025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The cubic root of 1010025 is about 100.3330561710. Note that the first 3 decimals are identical.

Adding to 1010025 its reverse (5200101), we get a palindrome (6210126).

The spelling of 1010025 in words is "one million, ten thousand, twenty-five".