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243242652 = 22353382457
BaseRepresentation
bin11100111111110…
…01011010011100
3121221201000012010
432133321122130
5444232231102
640045311220
76012346152
oct1637713234
9557630163
10243242652
11115338894
1269565510
133b517a83
142443b3d2
151654bd6c
hexe7f969c

243242652 has 24 divisors (see below), whose sum is σ = 578276496. Its totient is φ = 79550848.

The previous prime is 243242639. The next prime is 243242677. The reversal of 243242652 is 256242342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190593 + ... + 191864.

It is an arithmetic number, because the mean of its divisors is an integer number (24094854).

Almost surely, 2243242652 is an apocalyptic number.

It is an amenable number.

243242652 is an abundant number, since it is smaller than the sum of its proper divisors (335033844).

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

243242652 is a wasteful number, since it uses less digits than its factorization.

243242652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382517 (or 382515 counting only the distinct ones).

The product of its digits is 23040, while the sum is 30.

The square root of 243242652 is about 15596.2383926381. The cubic root of 243242652 is about 624.2327883100.

Adding to 243242652 its reverse (256242342), we get a palindrome (499484994).

The spelling of 243242652 in words is "two hundred forty-three million, two hundred forty-two thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 53 106 159 212 318 636 382457 764914 1147371 1529828 2294742 4589484 20270221 40540442 60810663 81080884 121621326 243242652