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10751072981 = 11977370271
BaseRepresentation
bin10100000001101000…
…00101101011010101
31000202021001002120012
422000310011223111
5134004233313411
64534452450005
7530264420045
oct120064055325
930667032505
1010751072981
114617778290
122100619905
13102449c45c
1473dbd3725
1542dcbd18b
hex280d05ad5

10751072981 has 4 divisors (see below), whose sum is σ = 11728443264. Its totient is φ = 9773702700.

The previous prime is 10751072921. The next prime is 10751072987. The reversal of 10751072981 is 18927015701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10751072981 - 214 = 10751056597 is a prime.

It is a super-2 number, since 2×107510729812 (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 (10751072987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488685125 + ... + 488685146.

It is an arithmetic number, because the mean of its divisors is an integer number (2932110816).

Almost surely, 210751072981 is an apocalyptic number.

10751072981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10751072981 is a deficient number, since it is larger than the sum of its proper divisors (977370283).

10751072981 is an equidigital number, since it uses as much as digits as its factorization.

10751072981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977370282.

The product of its (nonzero) digits is 35280, while the sum is 41.

The spelling of 10751072981 in words is "ten billion, seven hundred fifty-one million, seventy-two thousand, nine hundred eighty-one".

Divisors: 1 11 977370271 10751072981