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7421074220 = 225779766509
BaseRepresentation
bin1101110100101010…
…01001101100101100
3201011012001122000202
412322111021230230
5110144243333340
63224215213032
7351621042620
oct67225115454
921135048022
107421074220
11316900399a
121531377178
139136158a1
14505849180
152d6791c15
hex1ba549b2c

7421074220 has 48 divisors (see below), whose sum is σ = 17833193280. Its totient is φ = 2541137664.

The previous prime is 7421074189. The next prime is 7421074231. The reversal of 7421074220 is 224701247.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78326 + ... + 144834.

It is an arithmetic number, because the mean of its divisors is an integer number (371524860).

Almost surely, 27421074220 is an apocalyptic number.

7421074220 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7421074220 is an abundant number, since it is smaller than the sum of its proper divisors (10412119060).

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

7421074220 is a wasteful number, since it uses less digits than its factorization.

7421074220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67322 (or 67320 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 7421074220 is about 86145.6570002226. The cubic root of 7421074220 is about 1950.5432823299.

Adding to 7421074220 its reverse (224701247), we get a palindrome (7645775467).

The spelling of 7421074220 in words is "seven billion, four hundred twenty-one million, seventy-four thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 797 1594 3188 3985 5579 7970 11158 15940 22316 27895 55790 66509 111580 133018 266036 332545 465563 665090 931126 1330180 1862252 2327815 4655630 9311260 53007673 106015346 212030692 265038365 371053711 530076730 742107422 1060153460 1484214844 1855268555 3710537110 7421074220