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10663428 = 2231276997
BaseRepresentation
bin101000101011…
…011000000100
3202001202110210
4220223120010
510212212203
61020315420
7156431466
oct50533004
922052423
1010663428
116023656
1236a2b70
132294829
1415b8136
15e09803
hexa2b604

10663428 has 24 divisors (see below), whose sum is σ = 25080832. Its totient is φ = 3525984.

The previous prime is 10663423. The next prime is 10663439. The reversal of 10663428 is 82436601.

It is a super-2 number, since 2×106634282 = 227417393422368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10663395 and 10663404.

It is not an unprimeable number, because it can be changed into a prime (10663423) 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, 1975 + ... + 5022.

Almost surely, 210663428 is an apocalyptic number.

It is an amenable number.

10663428 is an abundant number, since it is smaller than the sum of its proper divisors (14417404).

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

10663428 is a wasteful number, since it uses less digits than its factorization.

10663428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7131 (or 7129 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 10663428 is about 3265.4904685208. The cubic root of 10663428 is about 220.1062021675.

The spelling of 10663428 in words is "ten million, six hundred sixty-three thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 127 254 381 508 762 1524 6997 13994 20991 27988 41982 83964 888619 1777238 2665857 3554476 5331714 10663428