Search a number
-
+
1112020220 = 225193194399
BaseRepresentation
bin100001001001000…
…0001010011111100
32212111110110222002
41002102001103330
54234134121340
6302202241432
736362005313
oct10222012374
92774413862
101112020220
11520785283
122704b6278
131494cbc3c
14a798b27a
156795c715
hex424814fc

1112020220 has 48 divisors (see below), whose sum is σ = 2537472000. Its totient is φ = 407799360.

The previous prime is 1112020219. The next prime is 1112020223. The reversal of 1112020220 is 220202111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112020223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35420 + ... + 58979.

It is an arithmetic number, because the mean of its divisors is an integer number (52864000).

Almost surely, 21112020220 is an apocalyptic number.

1112020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112020220 is an abundant number, since it is smaller than the sum of its proper divisors (1425451780).

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

1112020220 is a wasteful number, since it uses less digits than its factorization.

1112020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94458 (or 94456 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1112020220 is about 33346.9671784407. The cubic root of 1112020220 is about 1036.0265729135.

Adding to 1112020220 its reverse (220202111), we get a palindrome (1332222331).

The spelling of 1112020220 in words is "one billion, one hundred twelve million, twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 31 38 62 76 95 124 155 190 310 380 589 620 1178 2356 2945 5890 11780 94399 188798 377596 471995 943990 1793581 1887980 2926369 3587162 5852738 7174324 8967905 11705476 14631845 17935810 29263690 35871620 55601011 58527380 111202022 222404044 278005055 556010110 1112020220