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28162496330 = 256917407149
BaseRepresentation
bin11010001110100111…
…011001011101001010
32200200200201001012122
4122032213121131022
5430134044340310
620534312011242
72014615161203
oct321647313512
980620631178
1028162496330
1110a41aa4361
12555b690b22
13286a7a3817
1415123ac5aa
15aec663555
hex68e9d974a

28162496330 has 16 divisors (see below), whose sum is σ = 50699946600. Its totient is φ = 11263342272.

The previous prime is 28162496317. The next prime is 28162496347. The reversal of 28162496330 is 3369426182.

It can be written as a sum of positive squares in 4 ways, for example, as 24153200569 + 4009295761 = 155413^2 + 63319^2 .

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, 134405 + ... + 272744.

Almost surely, 228162496330 is an apocalyptic number.

28162496330 is a deficient number, since it is larger than the sum of its proper divisors (22537450270).

28162496330 is a wasteful number, since it uses less digits than its factorization.

28162496330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414073.

The product of its (nonzero) digits is 373248, while the sum is 44.

The spelling of 28162496330 in words is "twenty-eight billion, one hundred sixty-two million, four hundred ninety-six thousand, three hundred thirty".

Divisors: 1 2 5 10 6917 13834 34585 69170 407149 814298 2035745 4071490 2816249633 5632499266 14081248165 28162496330