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1242230 = 251123491
BaseRepresentation
bin100101111010001110110
32100010000112
410233101312
5304222410
642343022
713362443
oct4572166
92303015
101242230
11779340
124baa72
13346562
142449ca
15198105
hex12f476

1242230 has 32 divisors (see below), whose sum is σ = 2550528. Its totient is φ = 431200.

The previous prime is 1242221. The next prime is 1242233. The reversal of 1242230 is 322421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242233) 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, 2285 + ... + 2775.

It is an arithmetic number, because the mean of its divisors is an integer number (79704).

21242230 is an apocalyptic number.

1242230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242230 is an abundant number, since it is smaller than the sum of its proper divisors (1308298).

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

1242230 is a wasteful number, since it uses less digits than its factorization.

1242230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1242230 is about 1114.5537223481. The cubic root of 1242230 is about 107.4980709948.

Adding to 1242230 its reverse (322421), we get a palindrome (1564651).

The spelling of 1242230 in words is "one million, two hundred forty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 23 46 55 110 115 230 253 491 506 982 1265 2455 2530 4910 5401 10802 11293 22586 27005 54010 56465 112930 124223 248446 621115 1242230