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10268780 = 225513439
BaseRepresentation
bin100111001011…
…000001101100
3201022201010012
4213023001230
510112100110
61004032352
7153166064
oct47130154
921281105
1010268780
1158840a5
1235326b8
132187002
1415143a4
15d7c905
hex9cb06c

10268780 has 12 divisors (see below), whose sum is σ = 21564480. Its totient is φ = 4107504.

The previous prime is 10268779. The next prime is 10268789. The reversal of 10268780 is 8786201.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10268789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256700 + ... + 256739.

It is an arithmetic number, because the mean of its divisors is an integer number (1797040).

Almost surely, 210268780 is an apocalyptic number.

10268780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10268780 is an abundant number, since it is smaller than the sum of its proper divisors (11295700).

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

10268780 is a wasteful number, since it uses less digits than its factorization.

10268780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513448 (or 513446 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 10268780 is about 3204.4937197629. The cubic root of 10268780 is about 217.3566589775.

The spelling of 10268780 in words is "ten million, two hundred sixty-eight thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 513439 1026878 2053756 2567195 5134390 10268780