Search a number
-
+
260424660 = 22354340411
BaseRepresentation
bin11111000010111…
…00001111010100
3200011000221110210
433201130033110
51013132042120
641501445420
76311400366
oct1741341724
9604027423
10260424660
111240039a1
1273270870
1341c52642
1426830d36
1517ce2ce0
hexf85c3d4

260424660 has 24 divisors (see below), whose sum is σ = 729189216. Its totient is φ = 69446560.

The previous prime is 260424629. The next prime is 260424667. The reversal of 260424660 is 66424062.

It is a super-2 number, since 2×2604246602 = 135642007072231200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260424667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2170146 + ... + 2170265.

It is an arithmetic number, because the mean of its divisors is an integer number (30382884).

Almost surely, 2260424660 is an apocalyptic number.

260424660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260424660 is an abundant number, since it is smaller than the sum of its proper divisors (468764556).

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

260424660 is a wasteful number, since it uses less digits than its factorization.

260424660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4340423 (or 4340421 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 260424660 is about 16137.6782716722. The cubic root of 260424660 is about 638.5977273190.

The spelling of 260424660 in words is "two hundred sixty million, four hundred twenty-four thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 4340411 8680822 13021233 17361644 21702055 26042466 43404110 52084932 65106165 86808220 130212330 260424660