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2142298 = 21071149
BaseRepresentation
bin1000001011000001011010
311000211200101
420023001122
51022023143
6113530014
724131524
oct10130132
94024611
102142298
1112335a4
1287390a
135a0142
143daa14
152c4b4d
hex20b05a

2142298 has 4 divisors (see below), whose sum is σ = 3213450. Its totient is φ = 1071148.

The previous prime is 2142293. The next prime is 2142299. The reversal of 2142298 is 8922412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1968409 + 173889 = 1403^2 + 417^2 .

It is a d-powerful number, because it can be written as 213 + 1 + 46 + 215 + 221 + 92 + 8 .

It is not an unprimeable number, because it can be changed into a prime (2142293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535573 + ... + 535576.

22142298 is an apocalyptic number.

2142298 is a deficient number, since it is larger than the sum of its proper divisors (1071152).

2142298 is a wasteful number, since it uses less digits than its factorization.

2142298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071151.

The product of its digits is 2304, while the sum is 28.

The square root of 2142298 is about 1463.6591133184. The cubic root of 2142298 is about 128.9119845101.

The spelling of 2142298 in words is "two million, one hundred forty-two thousand, two hundred ninety-eight".

Divisors: 1 2 1071149 2142298