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728414142 = 23831462679
BaseRepresentation
bin101011011010101…
…011011110111110
31212202122021100120
4223122223132332
52442433223032
6200140235410
724023263251
oct5332533676
91782567316
10728414142
11344197365
12183b3bb66
13b7baa5b1
146ca53098
1543e3662c
hex2b6ab7be

728414142 has 16 divisors (see below), whose sum is σ = 1474381440. Its totient is φ = 239879192.

The previous prime is 728414129. The next prime is 728414143. The reversal of 728414142 is 241414827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728414143) 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, 730842 + ... + 731837.

It is an arithmetic number, because the mean of its divisors is an integer number (92148840).

Almost surely, 2728414142 is an apocalyptic number.

728414142 is an abundant number, since it is smaller than the sum of its proper divisors (745967298).

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

728414142 is a wasteful number, since it uses less digits than its factorization.

728414142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462767.

The product of its digits is 14336, while the sum is 33.

The square root of 728414142 is about 26989.1485971677. The cubic root of 728414142 is about 899.7588415593.

Adding to 728414142 its reverse (241414827), we get a palindrome (969828969).

The spelling of 728414142 in words is "seven hundred twenty-eight million, four hundred fourteen thousand, one hundred forty-two".

Divisors: 1 2 3 6 83 166 249 498 1462679 2925358 4388037 8776074 121402357 242804714 364207071 728414142