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28760026734 = 2323253491171
BaseRepresentation
bin11010110010001110…
…110010111001101110
32202020100001201211100
4122302032302321232
5432400031323414
621113455103530
72035462123305
oct326216627156
982210051740
1028760026734
111121931583a
1256a7811ba6
1329345162ca
14156b8b143c
15b34d44609
hex6b23b2e6e

28760026734 has 24 divisors (see below), whose sum is σ = 62332673832. Its totient is φ = 9583709040.

The previous prime is 28760026699. The next prime is 28760026739. The reversal of 28760026734 is 43762006782.

28760026734 is a `hidden beast` number, since 2 + 8 + 7 + 600 + 2 + 6 + 7 + 34 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 28760026734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28760026739) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187032 + ... + 304139.

It is an arithmetic number, because the mean of its divisors is an integer number (2597194743).

Almost surely, 228760026734 is an apocalyptic number.

28760026734 is an abundant number, since it is smaller than the sum of its proper divisors (33572647098).

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

28760026734 is a wasteful number, since it uses less digits than its factorization.

28760026734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494432 (or 494429 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 28760026734 in words is "twenty-eight billion, seven hundred sixty million, twenty-six thousand, seven hundred thirty-four".

Divisors: 1 2 3 6 9 18 3253 6506 9759 19518 29277 58554 491171 982342 1473513 2947026 4420539 8841078 1597779263 3195558526 4793337789 9586675578 14380013367 28760026734