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28045325001729 = 371335491666749
BaseRepresentation
bin1100110000001110011111…
…01000100110010000000001
310200022002212220211120010210
412120013033220212100001
512133443311200023404
6135351502222144333
75623131204136260
oct630071750462001
9120262786746123
1028045325001729
118a32a56906992
12318b4567220a9
13128588022ba39
146cd5883aa5d7
153397cb036689
hex1981cfa26401

28045325001729 has 8 divisors (see below), whose sum is σ = 42735733336000. Its totient is φ = 16025900000976.

The previous prime is 28045325001653. The next prime is 28045325001737. The reversal of 28045325001729 is 92710052354082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28045325001729 - 29 = 28045325001217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28045325001739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667745833354 + ... + 667745833395.

It is an arithmetic number, because the mean of its divisors is an integer number (5341966667000).

Almost surely, 228045325001729 is an apocalyptic number.

It is an amenable number.

28045325001729 is a deficient number, since it is larger than the sum of its proper divisors (14690408334271).

28045325001729 is a wasteful number, since it uses less digits than its factorization.

28045325001729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335491666759.

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 28045325001729 in words is "twenty-eight trillion, forty-five billion, three hundred twenty-five million, one thousand, seven hundred twenty-nine".

Divisors: 1 3 7 21 1335491666749 4006475000247 9348441667243 28045325001729