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234001240 = 23511531821
BaseRepresentation
bin11011111001010…
…01001101011000
3121022022111100121
431330221031120
5434401014430
635115243024
75540656234
oct1574511530
9538274317
10234001240
111100a6660
1266449474
1339630595
14231135c4
1515823a7a
hexdf29358

234001240 has 32 divisors (see below), whose sum is σ = 574367760. Its totient is φ = 85091200.

The previous prime is 234001219. The next prime is 234001247. The reversal of 234001240 is 42100432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234001247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265471 + ... + 266350.

Almost surely, 2234001240 is an apocalyptic number.

234001240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234001240 is an abundant number, since it is smaller than the sum of its proper divisors (340366520).

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

234001240 is a wasteful number, since it uses less digits than its factorization.

234001240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531843 (or 531839 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 234001240 is about 15297.0990713926. The cubic root of 234001240 is about 616.2251032598.

Adding to 234001240 its reverse (42100432), we get a palindrome (276101672).

The spelling of 234001240 in words is "two hundred thirty-four million, one thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 531821 1063642 2127284 2659105 4254568 5318210 5850031 10636420 11700062 21272840 23400124 29250155 46800248 58500310 117000620 234001240