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28016789348 = 2223304530319
BaseRepresentation
bin11010000101111011…
…100100011101100100
32200022112112100210202
4122011323210131210
5424334244224343
620512025010032
72011165531412
oct320573443544
980275470722
1028016789348
1110977824569
12551a923918
132846548982
1414dacc02b2
15ade980db8
hex685ee4764

28016789348 has 12 divisors (see below), whose sum is σ = 51161093760. Its totient is φ = 13399333992.

The previous prime is 28016789341. The next prime is 28016789377. The reversal of 28016789348 is 84398761082.

It is a junction number, because it is equal to n+sod(n) for n = 28016789293 and 28016789302.

It is not an unprimeable number, because it can be changed into a prime (28016789341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152265068 + ... + 152265251.

It is an arithmetic number, because the mean of its divisors is an integer number (4263424480).

Almost surely, 228016789348 is an apocalyptic number.

It is an amenable number.

28016789348 is a deficient number, since it is larger than the sum of its proper divisors (23144304412).

28016789348 is a wasteful number, since it uses less digits than its factorization.

28016789348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304530346 (or 304530344 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 56.

The spelling of 28016789348 in words is "twenty-eight billion, sixteen million, seven hundred eighty-nine thousand, three hundred forty-eight".

Divisors: 1 2 4 23 46 92 304530319 609060638 1218121276 7004197337 14008394674 28016789348