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10998802981 = 139199339703
BaseRepresentation
bin10100011111001010…
…00110101000100101
31001101112012002020101
422033211012220211
5140011143143411
65015222304101
7536363165665
oct121745065045
931345162211
1010998802981
1147345a0521
12216b588031
1310638c885a
14764a7c1a5
154459048c1
hex28f946a25

10998802981 has 8 divisors (see below), whose sum is σ = 11083768640. Its totient is φ = 10913920992.

The previous prime is 10998802963. The next prime is 10998802999. The reversal of 10998802981 is 18920889901.

It is an interprime number because it is at equal distance from previous prime (10998802963) and next prime (10998802999).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10998802981 - 215 = 10998770213 is a prime.

It is a super-2 number, since 2×109988029812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10998802931) 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, 257176 + ... + 296878.

It is an arithmetic number, because the mean of its divisors is an integer number (1385471080).

Almost surely, 210998802981 is an apocalyptic number.

It is an amenable number.

10998802981 is a deficient number, since it is larger than the sum of its proper divisors (84965659).

10998802981 is a wasteful number, since it uses less digits than its factorization.

10998802981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41835.

The product of its (nonzero) digits is 746496, while the sum is 55.

The spelling of 10998802981 in words is "ten billion, nine hundred ninety-eight million, eight hundred two thousand, nine hundred eighty-one".

Divisors: 1 139 1993 39703 277027 5518717 79128079 10998802981