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28700654740 = 2257927181031
BaseRepresentation
bin11010101110101100…
…010011110010010100
32202002012100022202121
4122232230103302110
5432234331422430
621103534345324
72034141353152
oct325654236224
982065308677
1028700654740
111119885377a
12568b95b244
132925129154
141563a583d2
15b2ea17a7a
hex6aeb13c94

28700654740 has 24 divisors (see below), whose sum is σ = 60279311232. Its totient is φ = 11478750240.

The previous prime is 28700654737. The next prime is 28700654849. The reversal of 28700654740 is 4745600782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68025 + ... + 249055.

It is an arithmetic number, because the mean of its divisors is an integer number (2511637968).

Almost surely, 228700654740 is an apocalyptic number.

28700654740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28700654740 is an abundant number, since it is smaller than the sum of its proper divisors (31578656492).

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

28700654740 is a wasteful number, since it uses less digits than its factorization.

28700654740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188967 (or 188965 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 43.

The spelling of 28700654740 in words is "twenty-eight billion, seven hundred million, six hundred fifty-four thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 7927 15854 31708 39635 79270 158540 181031 362062 724124 905155 1810310 3620620 1435032737 2870065474 5740130948 7175163685 14350327370 28700654740