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242712880 = 2453033911
BaseRepresentation
bin11100111011110…
…00000100110000
3121220201002110221
432131320010300
5444113303010
640030102424
76005011504
oct1635700460
9556632427
10242712880
11115006863
126934aa14
133b3908b7
1424340304
1516494dda
hexe778130

242712880 has 20 divisors (see below), whose sum is σ = 564307632. Its totient is φ = 97085120.

The previous prime is 242712863. The next prime is 242712887. The reversal of 242712880 is 88217242.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (242712887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1516876 + ... + 1517035.

Almost surely, 2242712880 is an apocalyptic number.

242712880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242712880 is an abundant number, since it is smaller than the sum of its proper divisors (321594752).

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

242712880 is a wasteful number, since it uses less digits than its factorization.

242712880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033924 (or 3033918 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 242712880 is about 15579.2451678507. The cubic root of 242712880 is about 623.7792748806.

The spelling of 242712880 in words is "two hundred forty-two million, seven hundred twelve thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 3033911 6067822 12135644 15169555 24271288 30339110 48542576 60678220 121356440 242712880