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28067616142 = 21031103313177
BaseRepresentation
bin11010001000111101…
…011101010110001110
32200110002011122001121
4122020331131112032
5424440302204032
620521042231154
72012353541446
oct321075352616
980402148047
1028067616142
11109a348a485
1255339554ba
132853c334b7
141503951126
15ae4170a97
hex688f5d58e

28067616142 has 16 divisors (see below), whose sum is σ = 42186256992. Its totient is φ = 14005560960.

The previous prime is 28067616133. The next prime is 28067616167. The reversal of 28067616142 is 24161676082.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2123458 + ... + 2136634.

It is an arithmetic number, because the mean of its divisors is an integer number (2636641062).

Almost surely, 228067616142 is an apocalyptic number.

28067616142 is a deficient number, since it is larger than the sum of its proper divisors (14118640850).

28067616142 is a wasteful number, since it uses less digits than its factorization.

28067616142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15243.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 28067616142 in words is "twenty-eight billion, sixty-seven million, six hundred sixteen thousand, one hundred forty-two".

Divisors: 1 2 1031 1033 2062 2066 13177 26354 1065023 2130046 13585487 13611841 27170974 27223682 14033808071 28067616142