[go: up one dir, main page]

Search a number
-
+
260442025 = 52193371627
BaseRepresentation
bin11111000011000…
…00011110101001
3200011001211021221
433201200132221
51013133121100
641502102041
76311502124
oct1741403651
9604054257
10260442025
11124015a48
127327a921
1341c5a50c
14268373bb
1517ce801a
hexf8607a9

260442025 has 24 divisors (see below), whose sum is σ = 341163680. Its totient is φ = 196680960.

The previous prime is 260442019. The next prime is 260442029. The reversal of 260442025 is 520244062.

260442025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-260442025 is a prime.

It is a super-2 number, since 2×2604420252 = 135660096772201250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (260442029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159262 + ... + 160888.

Almost surely, 2260442025 is an apocalyptic number.

260442025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

260442025 is a deficient number, since it is larger than the sum of its proper divisors (80721655).

260442025 is a wasteful number, since it uses less digits than its factorization.

260442025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993 (or 1988 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 260442025 is about 16138.2162892929. The cubic root of 260442025 is about 638.6119208072.

Adding to 260442025 its reverse (520244062), we get a palindrome (780686087).

The spelling of 260442025 in words is "two hundred sixty million, four hundred forty-two thousand, twenty-five".

Divisors: 1 5 19 25 95 337 475 1627 1685 6403 8135 8425 30913 32015 40675 154565 160075 548299 772825 2741495 10417681 13707475 52088405 260442025