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28480391482 = 217837658573
BaseRepresentation
bin11010100001100100…
…000100100100111010
32201111211212210101011
4122201210010210322
5431311440011412
621030025344134
72025525222214
oct324144044472
981454783334
1028480391482
1111095490724
12562a03804a
1328bb5c896a
1415426bd5b4
15b1a5097a7
hex6a190493a

28480391482 has 8 divisors (see below), whose sum is σ = 45233562996. Its totient is φ = 13402537152.

The previous prime is 28480391461. The next prime is 28480391491. The reversal of 28480391482 is 28419308482.

It can be written as a sum of positive squares in 2 ways, for example, as 28291576401 + 188815081 = 168201^2 + 13741^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×284803914822 (a number of 22 digits) contains 22 as substring.

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, 418829253 + ... + 418829320.

Almost surely, 228480391482 is an apocalyptic number.

28480391482 is a deficient number, since it is larger than the sum of its proper divisors (16753171514).

28480391482 is a wasteful number, since it uses less digits than its factorization.

28480391482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837658592.

The product of its (nonzero) digits is 884736, while the sum is 49.

The spelling of 28480391482 in words is "twenty-eight billion, four hundred eighty million, three hundred ninety-one thousand, four hundred eighty-two".

Divisors: 1 2 17 34 837658573 1675317146 14240195741 28480391482