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242061755 = 5138941843
BaseRepresentation
bin11100110110110…
…01000110111011
3121212111000022012
432123121012323
5443431434010
640004120135
75666330255
oct1633310673
9555430265
10242061755
11114701641
126909604b
133b1c3410
1424210cd5
15163b7005
hexe6d91bb

242061755 has 16 divisors (see below), whose sum is σ = 316340640. Its totient is φ = 176740608.

The previous prime is 242061731. The next prime is 242061763. The reversal of 242061755 is 557160242.

It is a cyclic number.

It is not a de Polignac number, because 242061755 - 216 = 241996219 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15137 + ... + 26706.

It is an arithmetic number, because the mean of its divisors is an integer number (19771290).

Almost surely, 2242061755 is an apocalyptic number.

242061755 is a deficient number, since it is larger than the sum of its proper divisors (74278885).

242061755 is a wasteful number, since it uses less digits than its factorization.

242061755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41950.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 242061755 is about 15558.3339403678. Note that the first 3 decimals coincide. The cubic root of 242061755 is about 623.2209718321.

The spelling of 242061755 in words is "two hundred forty-two million, sixty-one thousand, seven hundred fifty-five".

Divisors: 1 5 13 65 89 445 1157 5785 41843 209215 543959 2719795 3724027 18620135 48412351 242061755