Search a number
207025 = 5272132
BaseRepresentation
bin110010100010110001
3101111222121
4302202301
523111100
64234241
71521400
oct624261
9344877
10207025
111315a5
129b981
1373300
1455637
154151a
hex328b1

207025 has 27 divisors (see below), whose sum is σ = 323361. Its totient is φ = 131040.

The previous prime is 207017. The next prime is 207029. The reversal of 207025 is 520702.

207025 = T454 + T455.

It is a happy number.

The square root of 207025 is 455.

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

It can be written as a sum of positive squares in 4 ways, for example, as 53361 + 153664 = 231^2 + 392^2 .

It is not a de Polignac number, because 207025 - 23 = 207017 is a prime.

It is a hoax number, since the sum of its digits (16) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

207025 is a lucky number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (207029) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 15919 + ... + 15931.

2207025 is an apocalyptic number.

207025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

207025 is the 455-th square number.

207025 is the 228-th centered octagonal number.

It is an amenable number.

207025 is a deficient number, since it is larger than the sum of its proper divisors (116336).

207025 is a wasteful number, since it uses less digits than its factorization.

207025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50 (or 25 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 16.

The cubic root of 207025 is about 59.1571983350.

Multiplying 207025 by its sum of digits (16), we get a square (3312400 = 18202).

Adding to 207025 its reverse (520702), we get a palindrome (727727).

The spelling of 207025 in words is "two hundred seven thousand, twenty-five".