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28091614306 = 272006543879
BaseRepresentation
bin11010001010011001…
…000000010001100010
32200111202022212100111
4122022121000101202
5430012423124211
620523300441534
72013064532110
oct321231002142
980452285314
1028091614306
1110a05a90678
12553b9a92aa
132858bb66b2
141506bdaab0
15ae6311421
hex68a640462

28091614306 has 8 divisors (see below), whose sum is σ = 48157053120. Its totient is φ = 12039263268.

The previous prime is 28091614277. The next prime is 28091614307. The reversal of 28091614306 is 60341619082.

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

It is not an unprimeable number, because it can be changed into a prime (28091614307) 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, 1003271926 + ... + 1003271953.

It is an arithmetic number, because the mean of its divisors is an integer number (6019631640).

Almost surely, 228091614306 is an apocalyptic number.

28091614306 is a deficient number, since it is larger than the sum of its proper divisors (20065438814).

28091614306 is a wasteful number, since it uses less digits than its factorization.

28091614306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006543888.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 28091614306 in words is "twenty-eight billion, ninety-one million, six hundred fourteen thousand, three hundred six".

Divisors: 1 2 7 14 2006543879 4013087758 14045807153 28091614306