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242938040 = 2356073451
BaseRepresentation
bin11100111101011…
…11000010111000
3121221010112100012
432132233002320
5444143004130
640035001052
76006640112
oct1636570270
9557115305
10242938040
1111514aa44
1269439188
133b43c227
142439c3b2
15164db995
hexe7af0b8

242938040 has 16 divisors (see below), whose sum is σ = 546610680. Its totient is φ = 97175200.

The previous prime is 242938039. The next prime is 242938063. The reversal of 242938040 is 40839242.

It is a junction number, because it is equal to n+sod(n) for n = 242937988 and 242938006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3036686 + ... + 3036765.

Almost surely, 2242938040 is an apocalyptic number.

242938040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242938040 is an abundant number, since it is smaller than the sum of its proper divisors (303672640).

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

242938040 is a wasteful number, since it uses less digits than its factorization.

242938040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6073462 (or 6073458 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 242938040 is about 15586.4697734926. The cubic root of 242938040 is about 623.9721045496.

The spelling of 242938040 in words is "two hundred forty-two million, nine hundred thirty-eight thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 6073451 12146902 24293804 30367255 48587608 60734510 121469020 242938040