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10987912098 = 232610439561
BaseRepresentation
bin10100011101110111…
…00011101110100010
31001100202200202202100
422032323203232202
5140000401141343
65014153031230
7536201466102
oct121673435642
931322622670
1010987912098
114729431a99
1221679b5516
131061584647
14763445202
154449a29d3
hex28eee3ba2

10987912098 has 12 divisors (see below), whose sum is σ = 23807142918. Its totient is φ = 3662637360.

The previous prime is 10987912049. The next prime is 10987912099. The reversal of 10987912098 is 89021978901.

It can be written as a sum of positive squares in only one way, i.e., 7569522009 + 3418390089 = 87003^2 + 58467^2 .

It is not an unprimeable number, because it can be changed into a prime (10987912099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 305219763 + ... + 305219798.

Almost surely, 210987912098 is an apocalyptic number.

10987912098 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10987912098 is an abundant number, since it is smaller than the sum of its proper divisors (12819230820).

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

10987912098 is a wasteful number, since it uses less digits than its factorization.

10987912098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610439569 (or 610439566 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 54.

The spelling of 10987912098 in words is "ten billion, nine hundred eighty-seven million, nine hundred twelve thousand, ninety-eight".

Divisors: 1 2 3 6 9 18 610439561 1220879122 1831318683 3662637366 5493956049 10987912098