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28114221246 = 2335929394441
BaseRepresentation
bin11010001011101111…
…001111100010111110
32200120022212102020120
4122023233033202332
5430034220034441
620525425155410
72013460636416
oct321357174276
980508772216
1028114221246
1110a178215a1
12554748bb66
1328607a0597
141509c03646
15ae82c9966
hex68bbcf8be

28114221246 has 32 divisors (see below), whose sum is σ = 56416953600. Its totient is φ = 9340019520.

The previous prime is 28114221241. The next prime is 28114221269. The reversal of 28114221246 is 64212241182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28114221241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6328386 + ... + 6332826.

It is an arithmetic number, because the mean of its divisors is an integer number (1763029800).

Almost surely, 228114221246 is an apocalyptic number.

28114221246 is an abundant number, since it is smaller than the sum of its proper divisors (28302732354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28114221246 is a wasteful number, since it uses less digits than its factorization.

28114221246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7744.

The product of its digits is 12288, while the sum is 33.

The spelling of 28114221246 in words is "twenty-eight billion, one hundred fourteen million, two hundred twenty-one thousand, two hundred forty-six".

Divisors: 1 2 3 6 359 718 1077 2154 2939 4441 5878 8817 8882 13323 17634 26646 1055101 1594319 2110202 3165303 3188638 4782957 6330606 9565914 13052099 26104198 39156297 78312594 4685703541 9371407082 14057110623 28114221246