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2251442 = 210612
BaseRepresentation
bin1000100101101010110010
311020101101202
420211222302
51034021232
6120131202
725064654
oct10455262
94211352
102251442
1112a85a6
12906b02
1360aa1b
144286d4
152e7162
hex225ab2

2251442 has 6 divisors (see below), whose sum is σ = 3380349. Its totient is φ = 1124660.

The previous prime is 2251427. The next prime is 2251451. The reversal of 2251442 is 2441522.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2193361 + 58081 = 1481^2 + 241^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=1061.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1592 + ... + 2652.

22251442 is an apocalyptic number.

2251442 is a deficient number, since it is larger than the sum of its proper divisors (1128907).

2251442 is an frugal number, since it uses more digits than its factorization.

2251442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124 (or 1063 counting only the distinct ones).

The product of its digits is 640, while the sum is 20.

The square root of 2251442 is about 1500.4805896779. The cubic root of 2251442 is about 131.0650571330.

Adding to 2251442 its reverse (2441522), we get a palindrome (4692964).

The spelling of 2251442 in words is "two million, two hundred fifty-one thousand, four hundred forty-two".

Divisors: 1 2 1061 2122 1125721 2251442