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28860084208464 = 2431167751490259
BaseRepresentation
bin1101000111111100000110…
…00100010100001101010000
310210011222220220000200112220
412203332003010110031100
512240320423024132324
6141214050055421040
76036033535132455
oct643760304241520
9123158826020486
1028860084208464
1192175471780a3
1232a133b984780
131314656b86522
1471ab9a99582c
15350ab4e26b79
hex1a3f83114350

28860084208464 has 40 divisors (see below), whose sum is σ = 74561603778720. Its totient is φ = 9619204038528.

The previous prime is 28860084208393. The next prime is 28860084208489. The reversal of 28860084208464 is 46480248006882.

It is a junction number, because it is equal to n+sod(n) for n = 28860084208398 and 28860084208407.

It is a congruent number.

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, 25184634 + ... + 26305625.

It is an arithmetic number, because the mean of its divisors is an integer number (1864040094468).

Almost surely, 228860084208464 is an apocalyptic number.

28860084208464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28860084208464 is an abundant number, since it is smaller than the sum of its proper divisors (45701519570256).

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

28860084208464 is a wasteful number, since it uses less digits than its factorization.

28860084208464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51501947 (or 51501941 counting only the distinct ones).

The product of its (nonzero) digits is 37748736, while the sum is 60.

The spelling of 28860084208464 in words is "twenty-eight trillion, eight hundred sixty billion, eighty-four million, two hundred eight thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 11677 23354 35031 46708 70062 93416 140124 186832 280248 560496 51490259 102980518 154470777 205961036 308941554 411922072 617883108 823844144 1235766216 2471532432 601251754343 1202503508686 1803755263029 2405007017372 3607510526058 4810014034744 7215021052116 9620028069488 14430042104232 28860084208464