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1401222433 = 1331737517
BaseRepresentation
bin101001110000100…
…1111010100100001
310121122122110211011
41103201033110201
510332203104213
6351013020521
746503123412
oct12341172441
93548573734
101401222433
11659a54176
12331324741
131943b9000
14d414d809
158303703d
hex5384f521

1401222433 has 16 divisors (see below), whose sum is σ = 1607271120. Its totient is φ = 1217319168.

The previous prime is 1401222401. The next prime is 1401222457. The reversal of 1401222433 is 3342221041.

It can be written as a sum of positive squares in 8 ways, for example, as 763306384 + 637916049 = 27628^2 + 25257^2 .

It is not a de Polignac number, because 1401222433 - 25 = 1401222401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1401222463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18591 + ... + 56107.

It is an arithmetic number, because the mean of its divisors is an integer number (100454445).

Almost surely, 21401222433 is an apocalyptic number.

1401222433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1401222433 is a deficient number, since it is larger than the sum of its proper divisors (206048687).

1401222433 is an equidigital number, since it uses as much as digits as its factorization.

1401222433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37573 (or 37547 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1401222433 is about 37432.9057514909. The cubic root of 1401222433 is about 1119.0144479023.

Adding to 1401222433 its reverse (3342221041), we get a palindrome (4743443474).

The spelling of 1401222433 in words is "one billion, four hundred one million, two hundred twenty-two thousand, four hundred thirty-three".

Divisors: 1 13 17 169 221 2197 2873 37349 37517 487721 637789 6340373 8291257 82424849 107786341 1401222433