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1427221348 = 22750972191
BaseRepresentation
bin101010100010001…
…1010101101100100
310200110120100121221
41111010122231210
510410332040343
6353342150124
750240116120
oct12504325544
93613510557
101427221348
116726a1583
12339b82344
131998bca97
14d779a580
15854705ed
hex5511ab64

1427221348 has 12 divisors (see below), whose sum is σ = 2854442752. Its totient is φ = 611666280.

The previous prime is 1427221343. The next prime is 1427221361. The reversal of 1427221348 is 8431227241.

1427221348 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1427221343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25486068 + ... + 25486123.

Almost surely, 21427221348 is an apocalyptic number.

It is an amenable number.

1427221348 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1427221348 is a wasteful number, since it uses less digits than its factorization.

1427221348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50972202 (or 50972200 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 1427221348 is about 37778.5831920680. The cubic root of 1427221348 is about 1125.8929793638.

Adding to 1427221348 its reverse (8431227241), we get a palindrome (9858448589).

The spelling of 1427221348 in words is "one billion, four hundred twenty-seven million, two hundred twenty-one thousand, three hundred forty-eight".

Divisors: 1 2 4 7 14 28 50972191 101944382 203888764 356805337 713610674 1427221348