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240120012 = 223117125621
BaseRepresentation
bin11100100111111…
…11000011001100
3121201211100201210
432103333003030
5442432320022
635454334420
75643662226
oct1623770314
9551740653
10240120012
111135a57a0
12684ba410
133a993662
1423c67416
1516131a0c
hexe4ff0cc

240120012 has 48 divisors (see below), whose sum is σ = 619847424. Its totient is φ = 71736000.

The previous prime is 240119989. The next prime is 240120031. The reversal of 240120012 is 210021042.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 240120012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3439 + ... + 22182.

It is an arithmetic number, because the mean of its divisors is an integer number (12913488).

Almost surely, 2240120012 is an apocalyptic number.

240120012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

240120012 is an abundant number, since it is smaller than the sum of its proper divisors (379727412).

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

240120012 is a wasteful number, since it uses less digits than its factorization.

240120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25710 (or 25708 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 240120012 is about 15495.8062713755. The cubic root of 240120012 is about 621.5500687040.

Adding to 240120012 its reverse (210021042), we get a palindrome (450141054).

The spelling of 240120012 in words is "two hundred forty million, one hundred twenty thousand, twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 71 132 142 213 284 426 781 852 1562 2343 3124 4686 9372 25621 51242 76863 102484 153726 281831 307452 563662 845493 1127324 1690986 1819091 3381972 3638182 5457273 7276364 10914546 20010001 21829092 40020002 60030003 80040004 120060006 240120012