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28802885335813 = 1091735107299087
BaseRepresentation
bin1101000110010001100011…
…01111111011101100000101
310202222112021121020220011001
412203020301233323230011
512233401302121221223
6141131510213213301
76031640230550011
oct643106157735405
9122875247226131
1028802885335813
1191a5264978516
123292238031231
13130c13c85c754
147180d213b541
1534e3685829ad
hex1a3231bfbb05

28802885335813 has 16 divisors (see below), whose sum is σ = 29240972386560. Its totient is φ = 28368024762816.

The previous prime is 28802885335801. The next prime is 28802885335823. The reversal of 28802885335813 is 31853358820882.

It is a cyclic number.

It is not a de Polignac number, because 28802885335813 - 225 = 28802851781381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28802885335823) 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, 96153156 + ... + 96452242.

It is an arithmetic number, because the mean of its divisors is an integer number (1827560774160).

Almost surely, 228802885335813 is an apocalyptic number.

It is an amenable number.

28802885335813 is a deficient number, since it is larger than the sum of its proper divisors (438087050747).

28802885335813 is a wasteful number, since it uses less digits than its factorization.

28802885335813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304476.

The product of its (nonzero) digits is 88473600, while the sum is 64.

The spelling of 28802885335813 in words is "twenty-eight trillion, eight hundred two billion, eight hundred eighty-five million, three hundred thirty-five thousand, eight hundred thirteen".

Divisors: 1 109 173 5107 18857 299087 556663 883511 32600483 51742051 96302699 1527437309 5639883559 166490666681 264246654457 28802885335813