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1111119980 = 225311792129
BaseRepresentation
bin100001000111010…
…0101100001101100
32212102202202001212
41002032211201230
54233421314410
6302131053552
736351235565
oct10216454154
92772682055
101111119980
1152021a983
122701412b8
13149275259
14a77d516c
1567830b05
hex423a586c

1111119980 has 24 divisors (see below), whose sum is σ = 2408622720. Its totient is φ = 430110720.

The previous prime is 1111119979. The next prime is 1111120009. The reversal of 1111119980 is 899111111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 895445 + ... + 896684.

It is an arithmetic number, because the mean of its divisors is an integer number (100359280).

Almost surely, 21111119980 is an apocalyptic number.

1111119980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111119980 is an abundant number, since it is smaller than the sum of its proper divisors (1297502740).

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

1111119980 is a wasteful number, since it uses less digits than its factorization.

1111119980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792169 (or 1792167 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 32.

The square root of 1111119980 is about 33333.4663664012. The cubic root of 1111119980 is about 1035.7469244139.

The spelling of 1111119980 in words is "one billion, one hundred eleven million, one hundred nineteen thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 1792129 3584258 7168516 8960645 17921290 35842580 55555999 111111998 222223996 277779995 555559990 1111119980