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1110212020 = 225160734543
BaseRepresentation
bin100001000101100…
…0111110110110100
32212101001121120201
41002023013312310
54233203241040
6302055410244
736340434511
oct10213076664
92771047521
101110212020
1151a75a7a5
1226b983984
13149017bb8
14a763a308
1567701a9a
hex422c7db4

1110212020 has 24 divisors (see below), whose sum is σ = 2332963584. Its totient is φ = 443795616.

The previous prime is 1110212011. The next prime is 1110212023. The reversal of 1110212020 is 202120111.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1110211988 and 1110212006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110212023) 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, 14869 + ... + 49411.

It is an arithmetic number, because the mean of its divisors is an integer number (97206816).

Almost surely, 21110212020 is an apocalyptic number.

1110212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1110212020 is an abundant number, since it is smaller than the sum of its proper divisors (1222751564).

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

1110212020 is a wasteful number, since it uses less digits than its factorization.

1110212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36159 (or 36157 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1110212020 is about 33319.8442373310. The cubic root of 1110212020 is about 1035.4647247514.

Adding to 1110212020 its reverse (202120111), we get a palindrome (1312332131).

The spelling of 1110212020 in words is "one billion, one hundred ten million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 1607 3214 6428 8035 16070 32140 34543 69086 138172 172715 345430 690860 55510601 111021202 222042404 277553005 555106010 1110212020