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11840496980 = 2251345540373
BaseRepresentation
bin10110000011011111…
…11010010101010100
31010120011222120100012
423001233322111110
5143222131400410
65234530535352
7566263364234
oct130157722524
933504876305
1011840496980
1150267196a4
122365437558
1311690b9340
1480477bcc4
15494765605
hex2c1bfa554

11840496980 has 24 divisors (see below), whose sum is σ = 26777739912. Its totient is φ = 4371875712.

The previous prime is 11840496979. The next prime is 11840497073. The reversal of 11840496980 is 8969404811.

It can be written as a sum of positive squares in 4 ways, for example, as 537405124 + 11303091856 = 23182^2 + 106316^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22769927 + ... + 22770446.

It is an arithmetic number, because the mean of its divisors is an integer number (1115739163).

Almost surely, 211840496980 is an apocalyptic number.

11840496980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11840496980 is an abundant number, since it is smaller than the sum of its proper divisors (14937242932).

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

11840496980 is a wasteful number, since it uses less digits than its factorization.

11840496980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45540395 (or 45540393 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 50.

The spelling of 11840496980 in words is "eleven billion, eight hundred forty million, four hundred ninety-six thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 45540373 91080746 182161492 227701865 455403730 592024849 910807460 1184049698 2368099396 2960124245 5920248490 11840496980