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144112012240 = 2457257342879
BaseRepresentation
bin1000011000110110111…
…1101100101111010000
3111202222102011202002211
42012031233230233100
54330120133342430
6150112032321504
713261141615120
oct2061557545720
9452872152084
10144112012240
1156132523869
1223b1a9a3294
1310788771931
146d917bcc80
153b36c2072a
hex218dbecbd0

144112012240 has 40 divisors (see below), whose sum is σ = 382926205440. Its totient is φ = 49409832576.

The previous prime is 144112012201. The next prime is 144112012241. The reversal of 144112012240 is 42210211441.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144112012241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128670880 + ... + 128671999.

It is an arithmetic number, because the mean of its divisors is an integer number (9573155136).

Almost surely, 2144112012240 is an apocalyptic number.

144112012240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144112012240 is an abundant number, since it is smaller than the sum of its proper divisors (238814193200).

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

144112012240 is a wasteful number, since it uses less digits than its factorization.

144112012240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257342899 (or 257342893 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 144112012240 its reverse (42210211441), we get a palindrome (186322223681).

The spelling of 144112012240 in words is "one hundred forty-four billion, one hundred twelve million, twelve thousand, two hundred forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 257342879 514685758 1029371516 1286714395 1801400153 2058743032 2573428790 3602800306 4117486064 5146857580 7205600612 9007000765 10293715160 14411201224 18014001530 20587430320 28822402448 36028003060 72056006120 144112012240