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4289240 = 235157683
BaseRepresentation
bin10000010111001011011000
322001220201202
4100113023120
52044223430
6231533332
751313034
oct20271330
98056652
104289240
11246a62a
12152a248
13b72417
147d91c4
1559ad45
hex4172d8

4289240 has 32 divisors (see below), whose sum is σ = 9726480. Its totient is φ = 1702272.

The previous prime is 4289239. The next prime is 4289249. The reversal of 4289240 is 429824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4289249) 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, 5939 + ... + 6621.

Almost surely, 24289240 is an apocalyptic number.

4289240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4289240 is an abundant number, since it is smaller than the sum of its proper divisors (5437240).

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

4289240 is a wasteful number, since it uses less digits than its factorization.

4289240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 4289240 is about 2071.0480438657. The cubic root of 4289240 is about 162.4775827064.

The spelling of 4289240 in words is "four million, two hundred eighty-nine thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 157 314 628 683 785 1256 1366 1570 2732 3140 3415 5464 6280 6830 13660 27320 107231 214462 428924 536155 857848 1072310 2144620 4289240