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2104222420 = 225163645467
BaseRepresentation
bin111110101101011…
…1110001011010100
312102122110120111201
41331122332023110
513302140104140
6544444442244
7103100411146
oct17532761324
95378416451
102104222420
1198a8624a3
124a8849384
13276c38a31
1415d668c96
15c4aed49a
hex7d6be2d4

2104222420 has 24 divisors (see below), whose sum is σ = 4445983584. Its totient is φ = 836523936.

The previous prime is 2104222411. The next prime is 2104222423. The reversal of 2104222420 is 242224012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104222423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319474 + ... + 325993.

It is an arithmetic number, because the mean of its divisors is an integer number (185249316).

Almost surely, 22104222420 is an apocalyptic number.

2104222420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2104222420 is an abundant number, since it is smaller than the sum of its proper divisors (2341761164).

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

2104222420 is a wasteful number, since it uses less digits than its factorization.

2104222420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645639 (or 645637 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 2104222420 is about 45871.8041938618. The cubic root of 2104222420 is about 1281.4368670694.

Adding to 2104222420 its reverse (242224012), we get a palindrome (2346446432).

The spelling of 2104222420 in words is "two billion, one hundred four million, two hundred twenty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 163 326 652 815 1630 3260 645467 1290934 2581868 3227335 6454670 12909340 105211121 210422242 420844484 526055605 1052111210 2104222420