Search a number
-
+
1242020214 = 232471468109
BaseRepresentation
bin100101000000111…
…1011100101110110
310012120002011102200
41022001323211312
510020424121324
6323124445330
742530666121
oct11201734566
93176064380
101242020214
115880a7196
122a7b49846
1316a417706
14bad4b3b8
157408aec9
hex4a07b976

1242020214 has 24 divisors (see below), whose sum is σ = 2748301920. Its totient is φ = 405197808.

The previous prime is 1242020203. The next prime is 1242020233. The reversal of 1242020214 is 4120202421.

1242020214 is a `hidden beast` number, since 12 + 420 + 20 + 214 = 666.

It is a super-2 number, since 2×12420202142 = 3085228423969211592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 733209 + ... + 734900.

It is an arithmetic number, because the mean of its divisors is an integer number (114512580).

Almost surely, 21242020214 is an apocalyptic number.

1242020214 is an abundant number, since it is smaller than the sum of its proper divisors (1506281706).

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

1242020214 is a wasteful number, since it uses less digits than its factorization.

1242020214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468164 (or 1468161 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1242020214 is about 35242.3071605705. The cubic root of 1242020214 is about 1074.9201928134.

Adding to 1242020214 its reverse (4120202421), we get a palindrome (5362222635).

The spelling of 1242020214 in words is "one billion, two hundred forty-two million, twenty thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 18 47 94 141 282 423 846 1468109 2936218 4404327 8808654 13212981 26425962 69001123 138002246 207003369 414006738 621010107 1242020214