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10727998980 = 2235178799983
BaseRepresentation
bin10011111110111000…
…00100011000000100
31000200122121210222120
421333130010120010
5133432331431410
64532310125540
7526564325646
oct117734043004
930618553876
1010727998980
114605748466
1220b49508b0
13101c780aba
1473ab08896
1542bc61570
hex27f704604

10727998980 has 24 divisors (see below), whose sum is σ = 30038397312. Its totient is φ = 2860799712.

The previous prime is 10727998979. The next prime is 10727998987. The reversal of 10727998980 is 8989972701.

It is a super-2 number, since 2×107279989802 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 178799983 = 10727998980 / (1 + 0 + 7 + 2 + 7 + 9 + 9 + 8 + 9 + 8 + 0).

It is not an unprimeable number, because it can be changed into a prime (10727998987) 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, 89399932 + ... + 89400051.

It is an arithmetic number, because the mean of its divisors is an integer number (1251599888).

Almost surely, 210727998980 is an apocalyptic number.

10727998980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10727998980 is an abundant number, since it is smaller than the sum of its proper divisors (19310398332).

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

10727998980 is a wasteful number, since it uses less digits than its factorization.

10727998980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178799995 (or 178799993 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 60.

The spelling of 10727998980 in words is "ten billion, seven hundred twenty-seven million, nine hundred ninety-eight thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 178799983 357599966 536399949 715199932 893999915 1072799898 1787999830 2145599796 2681999745 3575999660 5363999490 10727998980