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10711750780 = 2253971349087
BaseRepresentation
bin10011111100111100…
…00101100001111100
31000122112001022122101
421332132011201330
5133414202011110
64530525554444
7526306244053
oct117636054174
930575038571
1010711750780
1145a755a9a5
1220ab415a24
1310192b2293
147388b939a
1542a60213a
hex27e78587c

10711750780 has 24 divisors (see below), whose sum is σ = 22551355008. Its totient is φ = 4273904448.

The previous prime is 10711750771. The next prime is 10711750781. The reversal of 10711750780 is 8705711701.

It is a happy number.

It is a super-2 number, since 2×107117507802 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10711750781) 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 7 ways as a sum of consecutive naturals, for example, 666604 + ... + 682483.

It is an arithmetic number, because the mean of its divisors is an integer number (939639792).

Almost surely, 210711750780 is an apocalyptic number.

10711750780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10711750780 is an abundant number, since it is smaller than the sum of its proper divisors (11839604228).

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

10711750780 is a wasteful number, since it uses less digits than its factorization.

10711750780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349493 (or 1349491 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 37.

The spelling of 10711750780 in words is "ten billion, seven hundred eleven million, seven hundred fifty thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 397 794 1588 1985 3970 7940 1349087 2698174 5396348 6745435 13490870 26981740 535587539 1071175078 2142350156 2677937695 5355875390 10711750780