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2289402 = 232127189
BaseRepresentation
bin1000101110111011111010
311022022110200
420232323322
51041230102
6121023030
725313433
oct10567372
94268420
102289402
111324075
12924a76
1362209b
1443848a
1530351c
hex22eefa

2289402 has 12 divisors (see below), whose sum is σ = 4960410. Its totient is φ = 763128.

The previous prime is 2289401. The next prime is 2289409. The reversal of 2289402 is 2049822.

It can be written as a sum of positive squares in only one way, i.e., 2277081 + 12321 = 1509^2 + 111^2 .

It is not an unprimeable number, because it can be changed into a prime (2289401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63577 + ... + 63612.

22289402 is an apocalyptic number.

2289402 is an abundant number, since it is smaller than the sum of its proper divisors (2671008).

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

2289402 is a wasteful number, since it uses less digits than its factorization.

2289402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127197 (or 127194 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2289402 is about 1513.0769973798. The cubic root of 2289402 is about 131.7975546869.

The spelling of 2289402 in words is "two million, two hundred eighty-nine thousand, four hundred two".

Divisors: 1 2 3 6 9 18 127189 254378 381567 763134 1144701 2289402