Search a number
-
+
1112120988 = 2231137227707
BaseRepresentation
bin100001001001001…
…1001111010011100
32212111122121012020
41002102121322130
54234200332423
6302204340140
736362605146
oct10222317234
92774577166
101112120988
11520843a60
12270544650
13149535a74
14a79b5c96
156797c4e3
hex42499e9c

1112120988 has 48 divisors (see below), whose sum is σ = 2907375744. Its totient is φ = 327896640.

The previous prime is 1112120987. The next prime is 1112121071. The reversal of 1112120988 is 8890212111.

It is a super-2 number, since 2×11121209882 = 2473626183900192288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112120981) 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, 108970 + ... + 118737.

It is an arithmetic number, because the mean of its divisors is an integer number (60570328).

Almost surely, 21112120988 is an apocalyptic number.

It is an amenable number.

1112120988 is an abundant number, since it is smaller than the sum of its proper divisors (1795254756).

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

1112120988 is a wasteful number, since it uses less digits than its factorization.

1112120988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227762 (or 227760 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 33.

The square root of 1112120988 is about 33348.4780462317. The cubic root of 1112120988 is about 1036.0578658614.

The spelling of 1112120988 in words is "one billion, one hundred twelve million, one hundred twenty thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 37 44 66 74 111 132 148 222 407 444 814 1221 1628 2442 4884 227707 455414 683121 910828 1366242 2504777 2732484 5009554 7514331 8425159 10019108 15028662 16850318 25275477 30057324 33700636 50550954 92676749 101101908 185353498 278030247 370706996 556060494 1112120988