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10240780 = 2251146549
BaseRepresentation
bin100111000100…
…001100001100
3201021021201011
4213010030030
510110201110
61003255004
7153021334
oct47041414
921237634
1010240780
115865060
12351a464
132177344
1415080c4
15d7448a
hex9c430c

10240780 has 24 divisors (see below), whose sum is σ = 23461200. Its totient is φ = 3723840.

The previous prime is 10240771. The next prime is 10240781. The reversal of 10240780 is 8704201.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (10240781) 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, 23055 + ... + 23494.

It is an arithmetic number, because the mean of its divisors is an integer number (977550).

Almost surely, 210240780 is an apocalyptic number.

10240780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10240780 is an abundant number, since it is smaller than the sum of its proper divisors (13220420).

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

10240780 is a wasteful number, since it uses less digits than its factorization.

10240780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46569 (or 46567 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 10240780 is about 3200.1218726792. The cubic root of 10240780 is about 217.1589228484.

Adding to 10240780 its reverse (8704201), we get a palindrome (18944981).

The spelling of 10240780 in words is "ten million, two hundred forty thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 46549 93098 186196 232745 465490 512039 930980 1024078 2048156 2560195 5120390 10240780