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10287028755 = 34525400071
BaseRepresentation
bin10011001010010011…
…11001101000010011
3222112220212012120000
421211021321220103
5132031434410010
64420434421043
7512631205323
oct114511715023
928486765500
1010287028755
1143a9839a63
121bb1131783
13c7c2c6183
146d831b283
154031a87c0
hex265279a13

10287028755 has 20 divisors (see below), whose sum is σ = 18440452272. Its totient is φ = 5486415120.

The previous prime is 10287028751. The next prime is 10287028757. The reversal of 10287028755 is 55782078201.

It is not a de Polignac number, because 10287028755 - 22 = 10287028751 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 10287028755.

It is not an unprimeable number, because it can be changed into a prime (10287028751) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12699631 + ... + 12700440.

Almost surely, 210287028755 is an apocalyptic number.

10287028755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10287028755 is a deficient number, since it is larger than the sum of its proper divisors (8153423517).

10287028755 is an equidigital number, since it uses as much as digits as its factorization.

10287028755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25400088 (or 25400079 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 45.

The spelling of 10287028755 in words is "ten billion, two hundred eighty-seven million, twenty-eight thousand, seven hundred fifty-five".

Divisors: 1 3 5 9 15 27 45 81 135 405 25400071 76200213 127000355 228600639 381001065 685801917 1143003195 2057405751 3429009585 10287028755