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144247664780 = 2257212383239
BaseRepresentation
bin1000011001010111010…
…1001011000010001100
3111210022212102121101222
42012111311023002030
54330404400233110
6150133320022512
713264406630432
oct2062565130214
9453285377358
10144247664780
11561a20565aa
1223b58301a38
13107aa8b91cb
146da5810d52
153b43ab8c55
hex2195d4b08c

144247664780 has 12 divisors (see below), whose sum is σ = 302920096080. Its totient is φ = 57699065904.

The previous prime is 144247664779. The next prime is 144247664833. The reversal of 144247664780 is 87466742441.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3606191600 + ... + 3606191639.

It is an arithmetic number, because the mean of its divisors is an integer number (25243341340).

Almost surely, 2144247664780 is an apocalyptic number.

144247664780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144247664780 is an abundant number, since it is smaller than the sum of its proper divisors (158672431300).

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

144247664780 is a wasteful number, since it uses less digits than its factorization.

144247664780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7212383248 (or 7212383246 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 53.

The spelling of 144247664780 in words is "one hundred forty-four billion, two hundred forty-seven million, six hundred sixty-four thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 7212383239 14424766478 28849532956 36061916195 72123832390 144247664780