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1420222232 = 2311134328871
BaseRepresentation
bin101010010100110…
…1101111100011000
310122222101202122102
41110221231330120
510402034102412
6352532142532
750123455412
oct12451557430
93588352572
101420222232
11669750a90
12337767a48
1319830c0b0
14d68979b2
1584a3b8c2
hex54a6df18

1420222232 has 64 divisors (see below), whose sum is σ = 3201327360. Its totient is φ = 582019200.

The previous prime is 1420222207. The next prime is 1420222259. The reversal of 1420222232 is 2322220241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34757 + ... + 63627.

It is an arithmetic number, because the mean of its divisors is an integer number (50020740).

Almost surely, 21420222232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420222232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1600663680).

1420222232 is an abundant number, since it is smaller than the sum of its proper divisors (1781105128).

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

1420222232 is a wasteful number, since it uses less digits than its factorization.

1420222232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28944 (or 28940 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1420222232 is about 37685.8359599465. The cubic root of 1420222232 is about 1124.0494969401.

Adding to 1420222232 its reverse (2322220241), we get a palindrome (3742442473).

The spelling of 1420222232 in words is "one billion, four hundred twenty million, two hundred twenty-two thousand, two hundred thirty-two".

Divisors: 1 2 4 8 11 13 22 26 43 44 52 86 88 104 143 172 286 344 473 559 572 946 1118 1144 1892 2236 3784 4472 6149 12298 24596 28871 49192 57742 115484 230968 317581 375323 635162 750646 1241453 1270324 1501292 2482906 2540648 3002584 4128553 4965812 8257106 9931624 13655983 16138889 16514212 27311966 32277778 33028424 54623932 64555556 109247864 129111112 177527779 355055558 710111116 1420222232