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142728026 = 2711179127
BaseRepresentation
bin10001000000111…
…01101101011010
3100221120100001012
420200131231122
5243014244101
622055053522
73352111460
oct1040355532
9327510035
10142728026
1173625751
123b9712a2
1323753c6c
1414d54830
15c7e4bbb
hex881db5a

142728026 has 16 divisors (see below), whose sum is σ = 244922496. Its totient is φ = 61107696.

The previous prime is 142728017. The next prime is 142728043. The reversal of 142728026 is 620827241.

It is a junction number, because it is equal to n+sod(n) for n = 142727983 and 142728001.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11075 + ... + 20201.

It is an arithmetic number, because the mean of its divisors is an integer number (15307656).

Almost surely, 2142728026 is an apocalyptic number.

142728026 is a deficient number, since it is larger than the sum of its proper divisors (102194470).

142728026 is a wasteful number, since it uses less digits than its factorization.

142728026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10253.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 142728026 is about 11946.8835266776. The cubic root of 142728026 is about 522.6004184184.

The spelling of 142728026 in words is "one hundred forty-two million, seven hundred twenty-eight thousand, twenty-six".

Divisors: 1 2 7 14 1117 2234 7819 9127 15638 18254 63889 127778 10194859 20389718 71364013 142728026