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10640260 = 2252323131
BaseRepresentation
bin101000100101…
…101110000100
3202000120200201
4220211232010
510210442020
61020020244
7156304111
oct50455604
922016621
1010640260
116008204
123691684
132287117
1415ad908
15e02a0a
hexa25b84

10640260 has 24 divisors (see below), whose sum is σ = 23317056. Its totient is φ = 4070880.

The previous prime is 10640257. The next prime is 10640263. The reversal of 10640260 is 6204601.

It is an interprime number because it is at equal distance from previous prime (10640257) and next prime (10640263).

It is a super-2 number, since 2×106402602 = 226430265735200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10640263) 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, 11106 + ... + 12025.

It is an arithmetic number, because the mean of its divisors is an integer number (971544).

Almost surely, 210640260 is an apocalyptic number.

10640260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10640260 is an abundant number, since it is smaller than the sum of its proper divisors (12676796).

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

10640260 is a wasteful number, since it uses less digits than its factorization.

10640260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23163 (or 23161 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 10640260 is about 3261.9411398736. The cubic root of 10640260 is about 219.9466812937.

Adding to 10640260 its reverse (6204601), we get a palindrome (16844861).

The spelling of 10640260 in words is "ten million, six hundred forty thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 23131 46262 92524 115655 231310 462620 532013 1064026 2128052 2660065 5320130 10640260